Rainbow Darkness Dragon, Advanced Dark & Yubel - The Supreme Horror [Written]

[Thomas★Zero]

Rainbow Darkness Dragon
lv 10 DARK
Dragon/Effect
(This card is always treated as a "Ultimate Crystal" card.)
Cannot be Normal Summoned/Set. Must be Special Summoned (from your hand) by having 7 "Advanced Crystal Beast" cards with different names on your field and/or GY. Gains 1000 ATK for each "Advanced Crystal Beast" card on the field. You can only use the following effects of "Rainbow Darkness Dragon" once per turn.
* (Quick Effect): You can send all face-up "Advanced Crystal Beast" monsters you control; destroy cards your opponent controls up to the number of "Crystal Beast" you sent to the GY.
* If this card is sent from the field to the GY: You can Special Summon 1 "Yubel" from your hand, Deck or GY, also, its effect "During your End Phase: Tribute 1 other monster or destroy this card." becomes "During the turn this card was Special Summoned (Quick Effect): You can add 1 "Super Polymerization" from your Deck or either players GY to your hand."
ATK/4000 DEF/0

Yubel - The Supreme Horror
lv 12 DARK
Fiend/Fusion/Effect
1 Level 10 or higher "Yubel" monster + 1+ monsters
Must be Fusion Summoned by the effect of "Super Polymerization". This card cannot be destroyed by battle or by your opponents card effects. You take no Battle Damage from battles involving this card. At the end of the Damage Step, if this face-up Attack Position card battles with an opponent's monster: Inflict damage to your opponents LP equal to that cards original ATK, also banish that card face-down. If this card attacks your opponent directly: This cards ATK becomes equal to the number of monsters used as Fusion material to summon this card x 1000 during damage calculation only.
ATK/0 DEF/0

Advanced Darkness
Continuous Spell Card
This card's name becomes "Advanced Dark" while it is on the field or in the GY. After activation: Add 1 "Advanced Crystal Beast" or "Ultimate Crystal" monster from your Deck or GY to your hand. All "Advanced Crystal Beast" monsters you control gain 800 ATK and DEF. If you control "Advanced Dark" in your Field Spell Card Zone, this card is unaffected by your opponents card effects.

[Blue Arcana]

I just realized you can clean ur opponent's entire board with Yubel simply for the other material being literally anything...