Thallid Sporemaw

Thallid Sporemaw can't be blocked by creatures with power 2 or less.
Scavenge {3}{b}, Exile ten cards from your graveyard. ({3}{b}, Exile ten other card from your graveyard: Put a number of +1/+1 counters equal to this card's power on target creature. Scavenge only as a sorcery.)
Thallid Sporemaw's power is equal to the number of Saprolings you control.