Urza, Prince of Kroog, Basalt Monolith, Mondrak, Glory Dominus, and Akroma's Memorial

Prerequisites

• Urza, Prince of Kroog on the battlefield
• Basalt Monolith on the battlefield
• Mondrak, Glory Dominus on the battlefield
• Akroma's Memorial on the battlefield
• available

Steps

1. Activate Basalt Monolith's first ability by tapping it, adding
2. Activate Urza by paying , creating two token copies of Basalt Monolith that are 1/1 Soldiers in addition to their other types
3. Activate both Basalt Monolith tokens' first abilities by tapping them, adding six
4. Repeat from step 2

Results

• Infinite ETB
• Infinite tapped creature tokens