Emeria Shepherd + World Shaper + Goblin Bombardment + Troubled Healer

Emeria Shepherd

World Shaper

Goblin Bombardment

Troubled Healer

How it works

1. Activate Troubled Healer by sacrificing a land.
2. Repeat step 1 until you control no lands.
3. Activate Goblin Bombardment by sacrificing World Shaper.
4. When World Shaper dies, it triggers, return all lands from your graveyard to the battlefield tapped.
5. When the lands enter, Emeria Shepherd triggers that many times.
6. Resolve an Emeria Shepherd trigger that was triggered by a Plains, returning World Shaper from your graveyard to the battlefield.
7. Resolve all remaining Emeria Shepherd triggers.
8. Resolve the Goblin Bombardment ability.
9. Repeat

This intricate loop turns your graveyard into a workshop of endless recursion, using Troubled Healer to clear your board of lands so that World Shaper can safely hit the bin and trigger its mass-return ability. Once World Shaper dies to feed Goblin Bombardment's appetite for damage, its demise floods the battlefield with lands to awaken Emeria Shepherd's landfall triggers. Because those returning lands include Plains, Emeria Shepherd can continually fish World Shaper straight back out of the graveyard to repeat the cycle infinitely, yielding limitless death triggers and damage.