Invasion of Tolvada // The Broken Sky, Felidar Guardian, and Phyrexian Altar

Prerequisites

• Invasion of Tolvada // The Broken Sky in hand
• Felidar Guardian in the graveyard
• Phyrexian Altar on the battlefield
• available

Steps

1. Cast Invasion of Tolvada by paying
2. When Invasion of Tolvada enters the battlefield, it triggers, returning Felidar Guardian from your graveyard to the battlefield
3. When Felidar Guardian enters the battlefield, it triggers, targeting Invasion of Tolvada
4. Holding priority, activate Phyrexian Altar by sacrificing Felidar Guardian, adding one mana of any color
5. Resolve the Felidar Guardian trigger, blinking Invasion of Tolvada
6. Repeat from step 2

Results

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