Mazirek, Kraul Death Priest + Evolution Witness + Welding Jar

Mazirek, Kraul Death Priest

Evolution Witness

Welding Jar

How it works

1. Cast Welding Jar by paying 0.
2. Activate Welding Jar by sacrificing it.
3. Mazirek triggers, putting a +1/+1 counter on Evolution Witness.
4. Evolution Witness triggers, returning Welding Jar from your graveyard to your hand.
5. Resolve the Welding Jar ability.
6. Repeat.

This loop relies on Mazirek, Kraul Death Priest to act as a brilliant engine of growth whenever anything is offered to the grave. By repeatedly sacrificing Welding Jar to its own regeneration ability, you trigger Mazirek to distribute +1/+1 counters across your board. Those counters fall upon Evolution Witness, which happily triggers its own ability to fish Welding Jar right back out of the graveyard and back into your hand, ready to be recast for free and looped endlessly.