Urza, Prince of Kroog, Mycosynth Lattice, Biomancer's Familiar, and Crumbling Vestige

Prerequisites

• Urza, Prince of Kroog on the battlefield
• Mycosynth Lattice on the battlefield
• Biomancer's Familiar on the battlefield
• Crumbling Vestige on the battlefield
• available

Steps

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

Results

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