Yedora, Grave Gardener + Temur Charger + Altar of Dementia

Yedora, Grave Gardener
Temur Charger
Altar of Dementia

Requires
All permanents on the battlefield. You have a green card in hand.
Steps
  1. Activate Altar of Dementia by sacrificing Temur Charger
  2. Temur Charger dies, triggering Yedora, returning Temur Charger from your graveyard to the battlefield face down as a Forest land
  3. Resolve the Altar of Dementia ability, causing target player to mill cards equal to Temur Charger's power
  4. Activate Temur Charger by tapping it, adding g
  5. Activate Temur Charger's morph ability by revealing a green card from your hand, turning Temur Charger face up
  6. Temur Charger triggers, giving target creature trample until end of turn
  7. Repeat
Results
Infinite green mana. Infinite ETB. Infinite LTB. Infinite death triggers. Infinite sacrifice triggers. Infinite landfall triggers. Infinite mill. Infinite self-mill.