Muld, Lord of Drifts

Flying, ward —Pay 2 life.
Mulldrifter Champion: Your deck may contain
any number of cards named Mulldrifter.
Muld, Lord of Drifts gets +1/+1/ for each creature
in play named Mulldrifter.
When this creature attacks, if you control at least
five Muldrifter creatures, you may return a
Mulldrifter card from your graveyard to your
hand. If you control at least ten Muldrifter creatures, they gain +3/+3 and menace.