Yllir, Wandering Paradise

As Yllir enters the battlefield, an opponent of
your choice gains control of it.
{t}: Draw a card, then you may put a land card
from your hand onto the battlefield. Yllir's owner
draws a card, then that player may put a land card
from their hand onto the battlefield. Target
opponent gains control of Yllir. Activate this
ability only during your turn.