The Chain Veil, Jace, Ingenious Mind-Mage, and March of the Machines

Prerequisites

• The Chain Veil on the battlefield
• Jace, Ingenious Mind-Mage on the battlefield
• March of the Machines on the battlefield
• Creatures you control can tap to produce at least
• The Chain Veil does not have summoning sickness

Steps

1. Activate all mana-producing creatures you control by tapping them, adding at least
2. Activate The Chain Veil by paying and tapping it, allowing an extra activation of your planeswalkers' abilities this turn
3. Activate Jace's second loyalty ability by putting a loyalty counter on it, untapping all creatures you control
4. Repeat

Results

• Infinite activations of loyalty abilities of all other Planeswalkers you control
• Infinite mana creatures you control can produce