Quote from GigaGuessMeh. Mentally, I'm pretty sure I'm just blue in a parka most of the time.
Quote from UmbrellaExileAlternation Keeper 7WW
Enchantment Creature - Angel
When Alternation Keeper comes into play, remove all permanents of a single card type from the game.
Quote from Voila!Guardian of Prahv
Enchantment Creature - Spirit Soldier
When Guardian of Prahv comes into play, if you played it from your hand, sacrifice it unless you remove a creature card in your graveyard from the game.
Quote from UmbrellaExileFaceless Piper
Creature - Elf Horror
When Faceless Piper comes into play, remove another creature from the game. If you do, search your library for a creature with converted mana cost 1 or less and put it into play.
When Faceless Piper comes into play, return each creature removed from the game by it to play under it's owner's control.