Infantry Shield + Najeela, the Blade-Blossom + Phyrexian Altar

WUBRG identity

Commander legal

The 3 combo pieces

• Infantry Shield
• Najeela, the Blade-Blossom
• Phyrexian Altar

How to execute it

1. Declare the creature that has Infantry Shield attached as an attacker, triggering its ability, creating a number of 1/1 Warrior creature tokens that are tapped and attacking equal to the creature's power.
2. Holding priority, activate Phyrexian Altar five times by sacrificing five Warriors, adding {W}{U}{B}{R}{G}.
3. Activate Najeela by paying {W}{U}{B}{R}{G}, untapping all attacking creatures, giving them trample, lifelink and haste, and gaining an additional combat phase after this one.
4. Repeat.

What the combo produces

• Infinite colored mana
• Infinite combat phases
• Infinite creature LTB
• Infinite creature tokens
• Infinite death triggers
• Infinite ETB
• Infinite sacrifice triggers