Requires

Grenzo, Dungeon Warden must be on the battlefield. Soldevi Digger must be on the battlefield. Workhorse must be in the graveyard. Mana needed:

Steps

1. Activate Soldevi Digger by paying , putting Workhorse on the bottom of your library from your graveyard.
2. Activate Grenzo by paying , putting Workhorse in your graveyard from the bottom of your library, then putting Workhorse onto the battlefield.
3. Workhorse enters the battlefield with four +1/+1 counters on it.
4. Activate Workhorse four times by removing four +1/+1 counters from it, adding .
5. Workhorse dies as a state-based action due to having zero toughness.
6. Repeat.

Results