Tatyova, Steward of Tides + Yedora, Grave Gardener + Phyrexian Altar

Prerequisites

• You control an additional nontoken creature.
• You control at least six lands.

Steps

1. 1Activate Phyrexian Altar by sacrificing a nontoken creature, adding one mana of any color.
2. 2The creature dies, triggering Yedora, returning the creature from your graveyard to the battlefield face down as a Forest land.
3. 3The face-down Forest enters the battlefield, triggering Tatyova, causing the Forest to become a 3/3 Elemental with haste until end of turn.
4. 4Repeat.

Effects

• Infinite colored mana
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers
• Infinite landfall triggers