mtg yawgmoth cards Demon its controller may pay 1 life Yawgmoth - MTG Wiki

2017-08-25 If you gain control of another player's permanent and it phases out, if the duration of the control-change effect expires before it phases in, that permanent phases in under that other player's control as your next untap step begins

You know what else can only be blocked by a creature with flying

Having dragons in play and casting Crux of Fate to destroy non-dragons, or something like the dreaded overloaded Cyclonic Rift turns the game in your favor

Stealing Creatures One last angle for casualty cards to consider are ways to steal creatures from your opponents that you can sacrifice rather than give them back

Rough Back to help with slipping when stacked