During the End Phase, if this card is in the GY because it was sent there from the field this turn: You can add 1 "Blackwing" monster from your Deck to your hand, except "Blackwing - Pinaki the Waxing Moon"
Lifegain prevention is, much like lifegain itself, exactly the sort of narrow yet highly valuable mode you want on your modal cards
Why is there a Light Azumarill, but not a Dark Azumarill
While a Control deck in Standard might be able to build itself to beat a particular metagame, that's usually not a realistic proposition for Modern, especially in long tournaments where you're guaranteed to play against random stuff
Ability: Star Abyss (VSTAR Power) During your turn you may search your discard pile for up to 2 Item cards and put them into your hand
A Tergrid, God of Fright deck is a mixture of forced sacrifice and discard, combined with theft as all permanents that are sacrificed or discarded are put on your battlefield