Big demon door thing. (Input and/or opinions appreciated)

[Dandelo]

 

You can Normal Summon this card by Tributing any 2 monsters on the field. If 1 or more of the monsters used to Summon this card in this way were your opponent's, this card's ATK is halved. During the End Phase of a turn that this card destroyed a monster your opponent controls, you can return any number of DARK monsters in your Graveyard to your Deck to Special Summon this card face-up in your opponent's Spell & Trap Card Zone as a Continuous Trap Card. While this card is face-up in your opponent' Spell & Trap Card Zone, all Level 4 or lower monsters require 1 Tribute to be Normal Summoned, except DARK monsters. After a number of turns turns equal to the number of DARK monsters sent to your Deck, remove this card from play.

[Phantom M.C.]

WHAT? no drawbacks to this card? no way, add some

[Dandelo]

There are drawbacks. ATK is halved, making it harder to destroy an opponent's monster, and making it easily destroyed in battle; thus having its other effect negated completely. Plus, it can only stay in your opponent's Spell & Trap Card Zone for a number of turns equal to the number of DARK monsters you sent, before it's removed from play.

 

Thanks for the comment, though.

[Phantom M.C.]

well, 99% of the time, nobody tributes monsters your opponent controls.

[Dandelo]

Seems... logical enough.