Sun Titan + Karmic Guide + Animate Dead + Phyrexian Altar

Prerequisites

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Steps

1. 1Cast Sun Titan.
2. 2Sun Titan enters the battlefield, returning Animate Dead from your graveyard to the battlefield.
3. 3With the Animate Dead trigger on the stack, Activate Phyrexian Altar, sacrificing Sun Titan to add a mana of any color.
4. 4Resolve the Animate Dead trigger, causing it to become an Aura with "enchant creature put onto the battlefield with Animate Dead" and returning Karmic Guide from your graveyard to the battlefield.
5. 5Animate Dead is put into your graveyard due to state based actions, as it cannot attach to a creature with protection from black.
6. 6Animate Dead triggers, causing you to sacrifice Karmic Guide.
7. 7Karmic Guide's enter the battlefield triggers.
8. 8Resolve Karmic Guide's enter the battlefield trigger returning Sun Titan from your graveyard to the battlefield.
9. 9Repeat from step 2.

Effects

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