Thea, Elf of the Woods

When Thea, Elf of the Woods enters the battlefield, untap target land you control.
Forestwalk
When Thea, Elf of the Woods attacks, you may exile her and put a 5/5 green wolf token into play tapped and attacking. At the end of combat, exiled the token and return Thea to the battlefield tapped with all enchantments and counters still on her.
If Thea is blocking or is blocked by a demon creature, she gains trample until end of turn.