Star Force 4 Gimmick Idea, OverCover

After defeating bosses, Mega Man gets one of 3 random parts, Buster Arm, Elemental Arm, and Ability Armor. Megaman can only obtain one of each part from a boss encounter and needs to beat higher tiers of bosses to obtain the remaining parts.

Buster Arm: Determines Mega Man’s Charge Shot and Over Force Big Bang.
Elemental Arm: Determines Mega Man’s Elemental Weakness, and applies a boost of attack power and a special effect to Cards that match its element. Elemental Arms do not affect dimming cards.
Ability Armor: Determines what passive abilities are applied to Mega Man
Over Power: A special effect that is applied only if an OverCover set is fully worn

Version 1 Over Covers (not sure what these versions can be named after)
Lynx OverCover
Buster Arm: Ice Scratch (30 x Buster Rank +20 [Aqua damage]) Mega Man spins forward 3 panels ahead, slicing enemies with his claws. Mega Man is invincible during this attack. Over Force Big Bang is Magician's Freeze, the same Big Bang as Ice Pegasus.
Elemental Arm: Weak to Elec. Aqua Cards + 30. Charged Aqua Cards inflict Freeze. Non Elemental Cards that hit frozen enemies break the Frozen status, inflict 50 more damage, and cracks the panel the Frozen enemy was on.
Ability Armor: No slipping on Ice Panels, Super Body
Over Power: Quick Charge (Faster charge with both buster and chips)

Musca OverCover
Buster Arm: Sniper Shot (40 x Buster Rank + 40 [Cursor]). Normal auto Lock on disappears while charging. While charging, reticules will quickly appear on panels 3 spaces ahead of Mega Man's current column. These will cycle through "Single Panel" "Whole Row" and "O shaped" release the buster and all tagged panels will be hit with homing missiles. Over Force Big Bang is Spiral Gattling, an original Big Bang attack that is Cursor Damage and has Mega Man hit random panels in the back 3x3 section multiple times (determined by RNG), Panels will be hit a maximum of 3 times. Each hit inflicts 80 damage (includes the +30 cursor card boost).
Elemental Arm: Weak to Wind. Cursor Cards + 30 and gain auto Lock On. While a Cursor Card is stocked (does not need to be the top one), Mega Man can see enemies under Invis. Charge Cursor Cards to allow them to pierce Invis.
Ability Armor: First Barrier 50. Press the fly button on the custom screen to allow the last 6 used battle cards to appear on top of the currently available cards. This can only be done once during a battle.
Over Power: First Barrier 150 is generated instead of the First Barrier 50.

Cassiopeia OverCover
Buster Arm: Thorn Rain (30 x Buster Rank + 10 [Wood]) Rains thorns down on the first 2 rows in front of Megaman. If Mega Man has Wood Cards stocked when firing, this attack gains 30 damage for each. Over Force Big Bang is Titania Bloom, which is Wood Element, summons flowers in the back row that deal 100 Damage. Hit panels are converted to Grass Panels afterward.
Elemental Arm: Weak to Fire. Wood Cards + 30. Charge Wood Cards to heal equal to the Wood Card’s labeled Attack value +30 upon release.
Ability Armor: HP+ 100. While not attacking, heal equal buster rank per second.
Over Power: Recovery Shot W (Using Recovery Chips has Mega Man shoot an arrow that inflicts Wood Damage equal to the HP healed +30)

Monocorn OverCover
Buster Arm: Judgment Charge (30 x Buster Rank + 10 [Sword]) Mega Man charges forward down the column he is on, up to 3 panels, if Mega Man hits an enemy, a Null element explosion occurs, that covers the surrounding panels in an O formation. Mega Man is invincible during this attack. Over Force Big Bang is Judgement Blade, a purely Sword elemental reskin of Thunderbolt Blade.
Elemental Arm: Weak to Breaking. Sword Cards +30. Charge Sword cards to perform a Rotation Slash, which hits the Locked On virus and deals damage equal to double the chips’ power + 30.
Ability Armor: Fast Gauge
Over Power: Charge chips to use them all at once without interruption. Any Null Chips used this way become sword attribute. This can be used in tandem with Rotation Slash.

Phoenix Over Cover
Buster Arm: Burning Cyclone (20 x Buster Rank + 40 [Fire and Wind]) Mega Man shoots a cyclone that hits panels in a T shaped formation. Over Force Big Bang is a reskined Vanishing Blazer.
Elemental Arm: Weak to Aqua and Sword. Fire Cards + 30, Wind Cards + 30. Fire Cards inflict HP Bugs. Enemies hit with a Wind Chip while under an HP Bug lengthens the HP Bug’s duration, and also increases the damage the HP Bug inflicts per second. This effect cannot be stacked.
Ability Armor: Pain Gain (Damage Mega Man takes increases the damage his Attack Cards will inflict.)
Over Power: Air Shoes, Float Shoes, Mega Card plus 2

Lepus OverCover
Buster Arm: Thunder Drop Kick (10 x Buster Rank + 30 [Elec and Breaking]) Mega Man does a drop kick on the nearest enemy on his column, enemy suffers flinch and are pushed back one panel. Mega Man is invincible during this attack. Over Force Big Bang is Voltic Calamity (450 Elec and Breaking), where Mega Man jumps high into the sky and drop kicks the center of the center enemy 3x3 area, sending out an explosion that covers the whole enemy area. Surviving enemies are flinched and all enemy panels are cracked afterwards.
Element Arm: Weak to Wood and Cursor. Elec and Breaking Cards +30. Elec cards no longer inflict paralysis even if they do by default, instead they inflict flinch. Breaking cards that destroy obstacles send out a “wave” that flinches all foes in the surrounding panels.
Ability Body: If an enemy is under the effect of flinch, a special marker will appear, quickly press the buster button to have Mega Man perform an Elec and Breaking kick that deals 80 damage on the nearest tagged enemy on his column.
Over Power: Kick Booster (When using this OverCover’s Ability Body effect, instead of kicking once, Mega Man kicks multiple times, before dealing a final kick, this modified kick deals 280 damage.) Card Recycle (2 previously used Battle Cards are generated during card select and must be selected before getting to the other battle cards.)

Version 2 OverCovers
Fox OverCover
Buster Arm: Bouncing Fire (30 x Buster Rank + 10 [Fire]) Mega Man summons a fireball that bounces and hits the first 3 panels down his row, dealing a further 50 damage after each panel it hits. Over Force Big Bang is Sun Blaze Meteor (Vermillion Shower) a Fire reskin of Meteor Light Barrage that turns the panels that it hits into lava panel.
Elemental Arm: Weak to Aqua. Fire Cards +30. Charge Fire Cards to give them an attack boost (varies based on the chip). After using a Fire card this way, Mega Man gains a unique Aura that makes the next Chip inflict increased damage, and if it was a Null card, it inflicts Fire damage.
Ability Armor: Immunity to the effects of Lava Panels. While on top of a Lava Panel press Up + Buster Button to remove the panel and have Mega Man throw a bomb at the 3rd panel of the row he is on that explodes in an O shaped formation.
Over Power: Start Lava (Certain Panels start out as Lava Panels at the beginning of a battle. These panels only last for about 40 seconds before being turned into Null Panels)

Pavos OverCover
Buster Arm: Peacock Fan (20 x Buster Rank + 40 [Wind damage]) Megaman shoots 2 small tornados that travel down the column he is in. Over Force Big Bang is Roaring Hurricane, a pallet swap of Green Dragon's Elemental Cyclone that only inflicts Wind damage.
Elemental Arm: Weak to Sword. Wind Cards + 30. After using a Wind Chip, Mega Man’s next Wind or Null Attack Card is boosted by 30, this boost continues until Mega Man uses a Null card or the player enters card select.
Ability Armor: Float Shoes and Air Shoes enabled, press the dice button on the custom screen to roll a dice, all attack cards gain power by the result x 2.
Over Power: Elemental Wind (when a Wind Attack hits a Lava, Wood, Ice or Sea, or Magnet Panels, the Wind Attack gains the element matching that panel)

Melion OverCover
Buster Arm: Chamelion Tounge (30 x Buster Rank + 10 [Elec damage]) Mega Man shoots a cable from his arm up to 3 panels ahead and drags a Virus enemy to the front row. If it hits an enemy in the front row, they take an additional 50 damage from this attack instead.Over Force Big Bang is Raging Star (Raijin Star) a Spark elemental reskin of Wood Ninja's Demon Flurry that leaves surviving enemies paralyzed.
Elemental Arm: Weak to Wood. Elec Cards + 30. Charged Elec Cards inflict Paralysis. Attack Cards that hit Paralyzed enemies send an elec damage shock in a + shaped formation that hits for 100 damage.
Ability Armor: Status Guard
Over Power: Chameleon Cloak (After releasing a charged shot Mega Man is invincible for a few seconds. The first time this is used, it lasts 10 seconds, then 8, then 6, then 4, and lastly 2 for all subsequent times. Increases charge time)

Perseus OverCover
Buster Arm: Breaker Sword (40 x Buster Rank + 50 [Breaking]) Mega Man slams the front 2 panels with a huge sword, the hit panels are cracked and the attack sends a Breaking elemental shockwave that travels down the column. Over Force Big Bang is Shattering Crasher (Shattering Crash) that has Mega Man swing a massive hammer down the last 3x3 section of the battlefield and inflict 300 Breaking damage and cracks those panels.
Elemental Arm: Weak to Cursor. Breaking Cards +30. Mega Man is invincible when using an Attack Breaking Card but now has a waiting period to use Battle Cards after the use of a Breaking card.
Ability Armor: Reflect
Over Power: Buster Charging produces a 100 HP shield that blocks attacks but breaks after taking 100 damage. The enemy the breaks the shield suffers flinch and Mega Man can counter-attack that enemy if they are in the same column.

Doraider OverCover
Buster Arm: Ocean Divide (30 x Buster Rank + 60 [Aqua and Sword]) Megaman slashes the front row, hitting the panel in front of him and adjacent panels. Over Force is Hyper Wave Torpedo which deals 350 Aqua and Sword damage and involves Mega Man conjuring a whirlpool on the ground before charging at foes and piercing them with his swords. This attack covers the entirety of the enemy's field.
Elemental Arm: Weak to Elec and Breaking. Aqua Cards + 30, Sword Cards + 30. Aqua Chips have a chance to inflict the bubble status on surviving viruses and wave change beings. Sword Chips that hit bubbled viruses are instantly deleted, while wave change beings exit the bubble status and suffer flinch instead.
Ability Armor: Anti Damage, can hide in sea panels by pressing down, but coming out removes that sea panel.
Over Power: Immunity to HP Bugs, Start Sea (Begin all battles with the whole field turned into sea panels that last for 40 seconds), Mega Card -1, Giga Card +1

Ursa OverCover
Buster Arm: Ursine Missile(30 x Buster Rank + 20 [Grass and Cursor]) Shoots a missile down the column Mega Man is on, when (and if) it explodes and hits an enemy it leaves behind a grass panel. Over Force Big Bang is Grand Rocket Impact (500 Wood and Cursor), Mega Man conjures a big cannon that shoots a barrage of missiles across the whole enemy field, before shooting a giant missile that travels that whole enemy field. Converts the entire enemy field into grass panels afterwards.
Element Arm: Weak to Fire and Wind. Wood and Cursor Cards +30. Cursor cards leave behind grass panels in the panels they hit plus the adjacent panels in a + formation. Using Wood cards causes thorns to skewer all enemies on top of grass panels in the column Mega Man is standing on after the card is used.
Ability Body: Double Body, (charge non dimming attack cards while on the left or the right, summon a doppelganger that uses the card on the center column, any chip that doesn’t match the Element Arm’s element, barring null element cards, suffer a halved damage penalty.)
Over Power: Start Grass (During battle, all panels start out as grass panels for 40 seconds. These grass panels cannot be burned down by fire attacks (but the double damage boost with fire attacks is still applied).) Gain Card Shuffle that can be used three times per turn.