Type

Legendary Creature — Crocodile Druid

Oracle Text

When this creature specializes, tap target nonland permanent an opponent controls. That permanent doesn't untap during its controller's untap step for as long as you control Lukamina, Crocodile Form.\nWhen Lukamina, Crocodile Form dies, it unspecializes. If it unspecializes this way, return it to the battlefield tapped.