Elder of the Lantern

Flash
This creature cost {2} more for each time you've
casted your commander this game.
Whenever Elder of the Lantern enters the battlefield, Squashling permanents you control
gain hexproof and indestructible until end of
turn. At the beginning of the next end step, sacrifice a permanent with the highest
converted mana cost that you control.
{2}{u}{u}: Return Elder of the Lantern to its
owner's hand.