Rat of Dark Power

Other rats you control have +2/+2, and Indestructible. When a rat enters the battlefield put a +1/+1 counter on each other creature you control. Creatures with power 1 or lower have Hexproof. When Rat of Dark Power dies exile all permanents except your lands.
{b}{t}: Create a 1/1 Rat with Deathtouch.
{b}, Place a -1/-1 counter on this creature: Untap this creature. You can only do this three times per turn only as a sorcery.