Altanak, the Thrice-Called + Lure + Sentinel + Switcheroo

Mana needed: {4}{U}

GU identity

Commander legal

The 4 combo pieces

• Altanak, the Thrice-Called
• Lure
• Sentinel
• Switcheroo

What must be in place

An opponent controls a creature.
Sentinel does not have summoning sickness.

How to execute it

1. Cast Switcheroo by paying {4}{U}, exchanging control of Altanak and another creature with an opponent.
2. Declare Sentinel as an attacker, forcing Altanak to block it due to Lure.
3. Holding priority, activate Sentinel an arbitrarily large number of times by paying {0}, targeting Altanak.
4. Altanak triggers that many times, causing an opponent to draw that many cards and lose the game due to drawing from an empty library.

What the combo produces

• Infinite card draw for target opponent
• Infinite draw triggers for target opponent
• Target opponent loses the game