Dross Scorpion + Elemental Mastery + Goblin Bombardment + Encroaching Mycosynth

Dross Scorpion

Elemental Mastery

Goblin Bombardment

Encroaching Mycosynth

How it works

1. Activate the creature with Elemental Mastery attached by tapping it, creating a number of 1/1 Elemental creature tokens with haste equal to its power.
2. Activate Goblin Bombardment by sacrificing an Elemental.
3. When the Elemental dies as an artifact due to Encroaching Mycosynth, Dross Scorpion triggers, untapping the creature with Elemental Mastery attached.
4. Resolve the Goblin Bombardment ability.
5. Repeat.

This brilliant loop transforms a creature enchanted with Elemental Mastery into a relentless token-producing engine, feeding directly into Goblin Bombardment to deal infinite damage to any target. The key architectural piece is Encroaching Mycosynth, which turns all nonland permanents you control—including the hasty Elemental tokens—into artifacts alongside their other types. Because those tokens are artifacts, their demise triggers Dross Scorpion whenever they are sacrificed, which in turn untaps your creature so you can tap it to Elemental Mastery all over again.