Gerrard, Weatherlight Hero + Loyal Retainers + Phyrexian Altar

Prerequisites

• It is your precombat main phase.

Steps

1. 1Activate Phyrexian Altar by sacrificing Gerrard, adding one mana of any color.
2. 2Gerrard dies, triggering its ability.
3. 3Holding priority, activate Loyal Retainers by sacrificing it, returning Gerrard from your graveyard to the battlefield.
4. 4Resolve the Gerrard trigger, returning all artifact and creature cards put into your graveyard this turn to the battlefield.
5. 5Repeat.

Effects

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