Marwyn, the Nurturer + Timeless Witness + Temur Sabertooth + Mobilize

Marwyn, the Nurturer
Timeless Witness
Temur Sabertooth
Mobilize

Requires
Marwyn, the Nurturer must be on the battlefield. Timeless Witness must be on the battlefield. Temur Sabertooth must be on the battlefield. Mobilize must be in hand. Marwyn does not have summoning sickness. Marwyn has a power of at least eight.
Steps
  1. Activate Marwyn by tapping it, adding at least eight .
  2. Cast Mobilize by paying , untapping all creatures you control.
  3. Activate Temur Sabertooth by paying 1, returning Timeless Witness from the battlefield to your hand.
  4. Cast Timeless Witness by paying 2.
  5. Timeless Witness enters the battlefield, returning Mobilize from your graveyard to your hand.
  6. Repeat.
Results
Infinite blinking of green creatures. Infinite ETB. Infinite green mana. Infinite LTB. Infinite magecraft triggers. Infinite mana creatures you control can produce. Infinite storm count. Infinite untap of creatures you control.

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