Szarel, Genesis Shepherd + Scurry Oak + Sword of the Meek + Umbral Collar Zealot
Szarel, Genesis Shepherd
Scurry Oak
Sword of the Meek
Umbral Collar Zealot
Infinite creature LTBInfinite creature ETBInfinite creature sacrifice triggersInfinite death triggersInfinite creature tokensInfinite surveilInfinite +1/+1 counters on creatures you control
How it works
Activate Umbral Collar Zealot by sacrificing Sword of the Meek
When you sacrifice Sword of the Meek, Szarel triggers, putting a number of +1/+1 counters on Scurry Oak.
Scurry Oak triggers, creating a 1/1 Squirrel creature token.
When the Squirrel enters the battlefield, Sword of the Meek triggers, returning itself from your graveyard to the battlefield attached to the Squirrel.
Resolve the Umbral Collar Zealot ability.
Repeat.
This loop transforms a modest sacrifice outlet into a runaway engine of creation and growth. You begin by using Umbral Collar Zealot to sacrifice Sword of the Meek, which immediately fires off Szarel, Genesis Shepherd to pump Scurry Oak with a cascade of +1/+1 counters based on Szarel's power. That influx of counters triggers Scurry Oak to spawn a fresh 1/1 Squirrel token, and the moment that token enters the battlefield, Sword of the Meek automatically leaps out of your graveyard and equips itself to the new Squirrel. Since Szarel also lets you play your lands right back out of the graveyard and Umbral Collar Zealot fuels your surveil along the way, you can feed the Sword back to the Zealot endlessly to repeat the cycle.