Yedora, Grave Gardener + Ambush Commander + Goblin Bombardment

Yedora, Grave Gardener

Ambush Commander

Goblin Bombardment

How it works

1. Activate Goblin Bombardment by sacrificing a nontoken Forest, which is a creature due to Ambush Commander.
2. When the Forest dies, Yedora triggers, returning the Forest from your graveyard to the battlefield face down as a Forest land.
3. Resolve the Goblin Bombardment ability, dealing 1 damage to any target.
4. Repeat.

This ingenious loop turns your own mana base into endless artillery by combining multiple overlapping layers of static and activated abilities. Ambush Commander acts as the crucial glue, transforming every Forest you control into a 1/1 green Elf creature while keeping them lands, which allows them to be sacrificed to Goblin Bombardment to deal direct damage. Whenever that land-creature dies, Yedora, Grave Gardener immediately steps in to return it from the graveyard straight to the battlefield face down as a fresh Forest land, perpetuating the cycle. Because the returned land immediately regains its Elf creature type thanks to Ambush Commander, you can continuously sacrifice it to Goblin Bombardment for infinite death triggers, enter-the-battlefield effects, and lethal damage.