Ether Well

Put target creature on top of its owner’s library. If that creature is red, you may put it on the bottom of its owner’s library instead.

Power Sink

Counter target spell unless its controller pays . If that player doesn’t, they tap all lands with mana abilities they control and lose all unspent mana.

Disenchant

Destroy target artifact or enchantment.

Regeneration

Enchant creature (Target a creature as you cast this. This card enters the battlefield attached to that creature.)
: Regenerate enchanted creature. (The next time that creature would be destroyed this turn, it isn’t. Instead tap it, remove all damage from it, and remove it from combat.)