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
I realized it was too late to really do anything about it
While not for every deck, these cards definitely dont see quite as much play as they really should, and should be considered for any deck containing several cards that benefit from interacting with your graveyard
For example, discarding easily recurred creatures, such as Gutterbones, easily pays the cost
Concealing Curtains shares another lineage: early defenders that transform into threats
If you ask any general Pokmon fan for their favorite Pokmon, the odds are strong that they will reply with a name that has captivated fans for the better part of three decades: Charizard