Kirol, Attentive First-Year + Helm of the Host + Mondrak, Glory Dominus

Prerequisites

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Steps

1. 1At the beginning of your combat phase, Helm of the Host triggers.
2. 2Holding priority, activate Kirol by tapping two creatures you control, copying the Helm of the Host trigger.
3. 3Resolve the copy of the Helm of the Host trigger, creating two token copies of Kirol that aren't legendary.
4. 4Holding priority, activate the Kirol token by tapping two creatures you control, copying the Helm of the Host trigger.
5. 5Repeat from step 3.

Effects

• Infinite creature ETB
• Infinite tapped creature tokens