Infected Vermin 
Creature — Rat
: This creature deals 1 damage to each creature and each player.
Threshold — 
: This creature deals 3 damage to each creature and each player. Activate only if seven or more cards are in your graveyard.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyLEGALvintageLEGALcommanderLEGAL