Colossification + Elemental Mastery + Epic Struggle

RG identity

Commander legal

The 3 combo pieces

What must be in place

Elemental Mastery and Colossification attached to the same creature.
The creature with Elemental Mastery and Colossification attached does not have summoning sickness.

How to execute it

  1. During the end step before your turn, activate the creature with Colossification and Elemental Mastery attached by tapping it, creating at least twenty 1/1 Elementals with haste.
  2. At the beginning of your upkeep, Epic Struggle triggers, causing you to win the game.

What the combo produces