Jace, Cunning Castaway, Ichormoon Gauntlet, and The Chain Veil

Prerequisites

• Jace, Cunning Castaway on the battlefield
• Ichormoon Gauntlet on the battlefield
• The Chain Veil on the battlefield
• Jace has at least five loyalty counters on it
• available

Steps

1. Activate The Chain Veil by paying and tapping it, allowing you an additional activation of your planeswalkers' abilities this turn
2. Activate Jace's third loyalty ability by removing five loyalty counters from it, creating two token copies of Jace that aren't legendary
3. Activate a Jace token by putting no loyalty counters on it, putting a loyalty counter on it and the other Jace token
4. Repeat step 3 using the other Jace token
5. Activate a Jace token's third loyalty ability by removing five loyalty counters from it, creating two token copies of Jace that aren't legendary
6. Repeat from step 3

Results

• Infinite ETB
• Infinite creature tokens
• Infinite Jace, Cunning Castaway tokens