Urza, Prince of Kroog + Mycosynth Lattice + Training Grounds + Crumbling Vestige

Prerequisites

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Steps

1. 1Activate Urza by paying , creating a token copy of Training Grounds that is a 1/1 Soldier in addition to its other types.
2. 2Activate Urza by paying , creating a token copy of Training Grounds that is a 1/1 Soldier in addition to its other types.
3. 3Activate Urza by paying , creating a token copy of Crumbling Vestige that is a 1/1 Soldier in addition to its other types.
4. 4When the Crumbling Vestige token enters the battlefield, it triggers, adding .
5. 5Repeat from step 3.

Effects

• Infinite creature ETB
• Infinite landfall triggers
• Infinite tapped creature tokens