Halvar, God of Battle // Sword of the Realms, Puresteel Paladin, Shield Sphere, and Phyrexian Altar

Prerequisites

• Halvar, God of Battle // Sword of the Realms on the battlefield
• Puresteel Paladin on the battlefield
• Shield Sphere in hand
• Phyrexian Altar on the battlefield

Steps

1. Cast Shield Sphere
2. Equip Sword of the Realms to Shield Sphere for
3. Sacrifice Shield Sphere to Phyrexian Altar to add a mana of any color
4. Sword of the Realms triggers, returning Shield Sphere to your hand
5. Repeat

Results

• Infinite colored mana
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers
• Infinite storm count