Gist, The Scourge Colony

Whenever a permanent leaves a graveyard, create a
1/1 green Saproling creature token.

As long as you control 4 or more Saproling tokens,
Fungus and Saprolings you control have
deathtouch.

As long as you control 8 or more Saproling tokens,
Fungus and Saprolings you control have "{t}: This
creature deals 1 damage to any target."