Ultra Ball PAF 91 can be used to find any Pokemon you need, but it's usually best to find an Evolution Pokemon with it
Released in the Surging Sparks set of the Pokemon TCG, this incarnation of Hydreigon comes with 330 HP and two devastating Moves
Then, for four mana, you can tap it to put a shadow (a creature with shadow can only block or be blocked by creatures with shadow) counter on a creature, which becomes a wraith for as long as it has that counter
I would build a deck in such a way that I never needed to cycle this, except in Modern there are decks that have next to no creatures, and against those decks, I would cycle this in the first game of the match and then stick it in my sideboard for the rest of that match
So unless they have a way to destroy their own Land or remove the Enchantment, the commander is stuck
Otherwise, its sacrificed