Teferi, Temporal Archmage, The Chain Veil, and Carth the Lion

Prerequisites

• Teferi, Temporal Archmage on the battlefield
• The Chain Veil on the battlefield
• Carth the Lion on the battlefield
• You control up to three permanents that can tap to produce at least
• available

Steps

1. Activate The Chain Veil by paying and tapping it, allowing an extra activation of all your planeswalkers' abilities until end of turn
2. Activate Teferi's second loyalty ability by removing zero loyalty counters from it, untapping The Chain Veil and up to three permanents that can tap to produce at least
3. Activate up to three permanents by tapping them, adding at least
4. Repeat

Results

• Infinite activations of planeswalker abilities
• Infinite card draw
• Infinite colored mana
• Infinite colorless mana
• Infinite mana permanents you control can produce
• Infinite planeswalker activations