Yedora, Grave Gardener + Phyrexian Altar + Den Protector

Prerequisites

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Steps

1. 1Activate Phyrexian Altar by sacrificing Den Protector, adding .
2. 2When Den Protector dies, Yedora triggers, returning Den Protector from your graveyard to the battlefield face down as a Forest land.
3. 3Activate Den Protector by tapping it, adding .
4. 4Activate Den Protector's megamorph ability by paying , turning it face up.
5. 5Den Protector triggers, returning any card from your graveyard to your hand.
6. 6Repeat.

Effects

• Infinite death triggers
• Infinite landfall triggers
• Infinite LTB
• Infinite sacrifice triggers
• Return all cards from your graveyard to your hand