Urza, Lord Protector + The Mightstone and Weakstone + The Chain Veil + Clock of Omens + Krark-Clan Ironworks

Prerequisites

• Urza, Lord Protector and The Mightstone and Weakstone melded into Urza, Planeswalker.

Steps

1. 1Activate Urza, Planeswalker's third loyalty ability by putting no loyalty counters on it, creating two 1/1 Soldier artifact creature tokens.
2. 2Activate Clock of Omens by tapping the two Soldiers, untapping The Chain Veil.
3. 3Activate Krark-Clan Ironworks twice by sacrificing the two Soldiers, adding .
4. 4Activate The Chain Veil by paying and tapping it, allowing you an additional activation of your planeswalkers' loyalty abilities this turn.
5. 5Repeat.

Effects

• Infinite activations of most planeswalkers
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers