Dross Scorpion + Elemental Mastery + Encroaching Mycosynth + Phyrexian Altar
Dross Scorpion
Artifact Creature — Scorpion
Elemental Mastery
Enchantment — Aura
Encroaching Mycosynth
Artifact
Phyrexian Altar
Artifact
Result
Combo data from Commander Spellbook.







