Invasion of Tolvada + Felidar Guardian + Ashnod's Altar
Invasion of Tolvada
Felidar Guardian
Ashnod's Altar
Requires
Invasion of Tolvada // The Broken Sky must be in hand.
Felidar Guardian must be in the graveyard.
Ashnod's Altar must be on the battlefield.
Mana needed: 
Steps
- Cast Invasion of Tolvada by paying .
- When Invasion of Tolvada enters the battlefield, it triggers, returning Felidar Guardian from your graveyard to the battlefield.
- When Felidar Guardian enters the battlefield, it triggers, targeting Invasion of Tolvada.
- Holding priority, activate Ashnod's Altar by sacrificing Felidar Guardian, adding .
- Resolve the Felidar Guardian trigger, blinking Invasion of Tolvada.
- Repeat from step 2.
Results
Infinite colorless mana. Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers.
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