Yedora, Grave Gardener + Phyrexian Altar + Riptide Pilferer

Yedora, Grave Gardener

Phyrexian Altar

Riptide Pilferer

How it works

1. Activate Phyrexian Altar by sacrificing Riptide Pilferer, adding .
2. When Riptide Pilferer dies, Yedora triggers, returning Riptide Pilferer from your graveyard to the battlefield face down as a Forest land.
3. Activate Riptide Pilferer by tapping it, adding .
4. Activate Riptide Pilferer's morph ability by paying , turning it face up.
5. Repeat.

This ingenious loop turns Riptide Pilferer into a self-sustaining mana engine by leveraging Yedora, Grave Gardener's ability to resurrect dead creatures as face-down Forest lands. Once it's chilling on the battlefield in its land guise, you can tap it for green mana before paying its morph cost to turn it back face up, ready to be sacrificed anew to Phyrexian Altar for colored mana. Because the altar's sacrifice fuels the exact blue mana needed for the morph cost, the loop feeds itself while generating infinite mana, landfall triggers, and creature deaths.