Irresistible Faefolk

Card textWhen I move to a battlefield, you may move an enemy unit to that battlefield.

Two Energy for a unit that rearranges their board. Walk her into one battlefield and drag their defender out of the one you actually want — it's left empty for your real attacker. The pull happens before the fight starts, and any move counts, so a spell that moves her again pulls again. Watch where you pull to: if she dies on a battlefield nobody held, the unit you pulled is left there alone — and its controller conquers it.