Krark-Clan Ironworks + Myr Propagator + Power Artifact + Umbral Mantle

Mana needed: {1}

U identity

Commander legal

The 4 combo pieces

• Krark-Clan Ironworks
• Myr Propagator
• Power Artifact
• Umbral Mantle

What must be in place

Umbral Mantle and Power Artifact attached to Myr Propagator.
Myr Propagator does not have summoning sickness.

How to execute it

1. Activate Myr Propagator by paying {1} and tapping it, creating a token copy of itself.
2. Activate Krark-Clan Ironworks by sacrificing the Myr Propagator token, adding {C}{C}.
3. Activate Myr Propagator by paying {1} and untapping it, giving itself +2/+2 until end of turn.
4. Repeat.

What the combo produces

• Infinite creature LTB
• Infinite death triggers
• Infinite ETB
• Infinite sacrifice triggers
• Infinitely large creature until end of turn