Fun cards

Artworks and mechanics below are made by KrysFun on deviantArt.

https://www.deviantart.com/krysfun/art/Funcard-artwork-760885566
Relic Phoenix
Selfcrea Monster
ATK ?
LEV ?
2000 or more damage
When this card is Flash Summoned: You can add 1 Level 5 or higher FIRE Winged Beast monster from your Deck to your hand. During your Main Phase: You can destroy 1 card in your hand, and if you do, destroy 1 Spell/Trap your opponent controls in this card's column or in zones adjacent to this card's. You can only use this effect of "Relic Phoenix" once per turn.

https://www.deviantart.com/krysfun/art/Funcard-artwork-2-760888189
Awakened Phoenix
★★★★★
FIRE
Winged Beast/Effect
ATK 2200
DEF 1400
During your next Standby Phase after this card was destroyed by a card effect and sent to the GY: Special Summon this card from the GY. When you do: Target up to 2 cards in your opponent's GY; banish them.

https://www.deviantart.com/krysfun/art/Funcard-artwork-3-760889306
Nihility Dragon
Selfcrea Monster
ATK ?
LEV ?
2100 or more damage
When this card is Flash Summoned: You can target 1 face-up monster your opponent controls that did not declare an attack; destroy it. You can only use this effect of "Nihility Dragon" once per turn. Once per turn: You can discard 1 card, then target 1 face-up card with the same type of card (Monster, Spell, or Trap) as the discarded card your opponent controls; banish it.

https://www.deviantart.com/krysfun/art/Funcard-artwork-4-760922690
Gaia Traitor, the Crested Ronin
Scale 6
DARK
Warrior/Altar/Effect
ATK 2600
DEF 2100
This card can be used as a Level 6 Tribute to Ritual Summon a Ritual Monster. A Ritual Summon that was used by Tributing this card cannot be negated. If a Ritual Monster would be destroyed by battle or card effect, you can banish this card from your GY instead, and if you do, Special Summon 1 Level 6 or lower non-Effect Monster from your Extra Deck, ignoring its Summoning conditions.
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Send 1 6-Scaled or higher Altar Monster from your hand to the GY
This card can be used as a substitute for any Ritual Spell required to Ritual Summon a Level 6 Ritual Monster. When this card is Summoned: You can target 1 monster that was Tributed for a Ritual Summon, in your GY; add it to your hand.

https://www.deviantart.com/krysfun/art/Funcard-artwork-5-760922967
Aurora Hydra
★★★★
WATER
Wyrm/Tuner/Effect
ATK 100
DEF 1800
When an attack is declared involving your Wyrm monster and an opponent's monster: You can Special Summon this card from your hand, then destroy that opponent's monster. If this card is sent from the field to the GY for the Synchro Summon of a Wyrm Synchro Monster: You can Special Summon this card. When you do: Target 1 Wyrm Synchro Monster you control; this card's Level becomes that of the targeted monster's, but banish this card if it leaves the field.

https://www.deviantart.com/krysfun/art/Funcard-artwork-6-760923219
Vortex Oracle
★★★★★★
WIND
Spellcaster/Ritual/Effect
ATK 2000
DEF 1100
Must be Ritual Summoned by the effect of an Altar Monster. If this card is Ritual Summoned: You can target 1 monster that was Tributed for a Ritual Summon, in your GY; equip it to this card, and if you do, this card gains ATK equal to the original ATK of that monster. (You can only equip this card with 1 monster at a time with this effect.) Once per turn: You can send 1 monster equipped to this card to the GY; inflict damage to your opponent equal to its original ATK, but this card cannot attack the turn you activate this effect.

https://www.deviantart.com/krysfun/art/Funcard-artwork-7-760923460
Dark-Horned Cerberus
★★★★★★★★★
DARK
Beast/Synchro/Effect
ATK 3000
DEF 2000
1 Tuner + 2+ non-Tuner monsters
Unaffected by other monsters' effects. Your opponent cannot activate Spells/Traps or effects in their possession during the Battle Phase. This card can make up to 3 attacks during each Battle Phase. Once per turn, at the start of the Damage Step, if this card attacks: You can destroy 1 Spell/Trap on the field.

https://www.deviantart.com/krysfun/art/Funcard-artwork-8-760923788
Iblis Dragon
★★★★★★★
FIRE
Wyrm/Synchro/Effect
ATK 2500
DEF 1800
1 Tuner + 1+ non-Tuner monsters
Once per turn: You can excavate the top 5 cards of your Deck, shuffle them back in, also this card gains 300 ATK for each monster excavated (until the end of this turn), also inflict 300 damage to your opponent for each Spell/Trap excavated this way.