Marwyn, the Nurturer + Eternal Witness + Temur Sabertooth + Mobilize
Marwyn, the Nurturer
Eternal Witness
Temur Sabertooth
Mobilize
Infinite blinking of some creaturesInfinite creature ETBInfinite green manaInfinite creature LTBInfinite magecraft triggersInfinite mana creatures you control can produceInfinite storm countInfinite untap of creatures you control
How it works
Activate Marwyn by tapping it, adding at least seven .
Cast Mobilize by paying , untapping all creatures you control.
Activate Temur Sabertooth by paying 1, returning Eternal Witness from the battlefield to your hand.
Cast Eternal Witness by paying 1.
Eternal Witness enters the battlefield, returning Mobilize from your graveyard to your hand.