Master Obelisk and his requests.

Nekroz Prism
Field Spell Card
If this card is activated: You can add 1 Level 4 or lower "Nekroz" monster from your Deck to your hand. If a Ritual Summoned "Nekroz" monster you control destroys an opponent's monster by battle: You can target 1 "Nekroz" Ritual Spell Card in your Graveyard; shuffle that target to your Deck, and if you do, draw 1 card. You can only use this effect of "Nekroz Prism" once per turn.

Frightfur Scorpion
DARK Fiend/Fusion/Effect
L8 2700/1100
"Edge Imp Tomahawk" + 1 "Frightfur" monster
Must be Fusion Summoned, and cannot be Special Summoned by other ways. If this card battles a Defense Position monster, inflict piercing battle damage to your opponent. If this card destroys an opponent's monster by battle and that monster has an effect that activates in the Graveyard, negate that effect. If this card is destroyed by battle and sent to the Graveyard: You can target 1 "Edge Imp" monster in your Graveyard and 1 Special Summoned monster your opponent controls; banish the second target, add the first target to your hand, and if you do, inflict 600 damage to your opponent.

Divine Dragon Magician Felgrand
LIGHT Spellcaster/Synchro/Effect
L8 2800/2800
1 Tuner + 1 or more non-Tuner monsters
Once per turn, during either player's turn, if your opponent activates a monster effect: You can discard 1 card; negate that effect, and if you do, halve that monster's ATK, until the end of this turn. This card is unaffected by Trap effects.

Stardust Dragon Archfiend
LIGHT Dragon/Fusion/Effect
L9 3500/2000
"Stardust Dragon" + "Red Dragon Archfiend"
Must be Special Summoned (from your Extra Deck) by banishing the above cards you control, and cannot be Special Summoned by other ways. (You do not use "Polymerization".) Once per turn, during either player's turn, if your opponent activates a card or effect that would destroy cards you control: You can Tribute this card; negate the activation/effect of that card, and if you do, destroy that card, then destroy 2 other cards on the field, except this card. During the End Phase, if this effect was activated this turn (and was not negated): You can Special Summon 1 "Stardust Dragon" or 1 "Red Dragon Archfiend" from your Graveyard.

Junk Dragon
DARK Dragon/Synchro/Effect
L6 2500/1200
"Junk Synchron" + 1 or more non-Tuner monsters
If this card is Synchro Summoned: You can target 1 monster your opponent controls; change its battle position. If this card battles a Defense Position monster, inflict piercing battle damage to your opponent. During the Damage Step, if this attacking card destroys an opponent's Special Summoned monster by battle: It can make a second attack, on a monster, in a row. You can only use this effect of "Junk Dragon" once per turn.

Number C13: Embodiment of Adam
DARK Fiend/Xyz/Effect
R2 800/800
3 Level 2 DARK monsters
Once per turn, during either player's turn: You can detach 1 Xyz Material from this card; change all monsters your opponent controls to face-up Attack Position, also all monsters your opponent currently controls must attack this card this turn, if able, also monsters that changed their battle position by this effect cannot activate their effects, until the end of this turn. While you control "Number 31: Embodiment of Punishment" OR "Number C31: Embodiment of Eve" and this card has "Number 13: Embodiment of Crime" as an Xyz Material, it gains these effects.
● This card cannot be destroyed by battle or by card effects while it has Xyz Material.
● Your opponent takes any battle damage you would have taken from attacks on this card.
● If this card is targeted for an attack with an Extra Deck Monster, this card's ATK becomes 0, during this Battle Phase only.

Number C31: Embodiment of Eve
DARK Fiend/Xyz/Effect
R2 800/800
3 Level 2 DARK monsters
Once per turn, during either player's turn: You can detach 1 Xyz Material from this card; change all monsters your opponent controls to face-up Attack Position, also all monsters your opponent currently controls must attack this card this turn, if able, also monsters that changed their battle position by this effect cannot activate their effects, until the end of this turn. While you control "Number 13: Embodiment of Crime" OR "Number C13: Embodiment of Adam" and this card has "Number 31: Embodiment of Punishment" as an Xyz Material, it gains these effects.
● This card cannot be destroyed by battle or by card effects while it has Xyz Material.
● Your opponent takes any battle damage you would have taken from attacks on this card.
● If this card is targeted for an attack with an Extra Deck Monster, this card's ATK becomes 0, during this Battle Phase only.