Rally the Galadhrim + Great Whale + Vampire Charmseeker
Rally the Galadhrim
Great Whale
Vampire Charmseeker
Infinite creature ETBInfinite mana lands you control can produceInfinite magecraft triggersInfinite storm countInfinite tapped copies of creatures you controlInfinite untap of lands you control
How it works
Activate up to seven lands by tapping them, adding at least 2.
Cast Rally the Galadhrim by paying 2 and tapping Vampire Charmseeker and Great Whale, targeting Vampire Charmseeker
Rally the Galadhrim's conspire ability triggers, copying it, targeting Great Whale.
Resolve the copy of Rally the Galadhrim, creating a token copy of Great Whale.
When the Great Whale token enters the battlefield, it triggers, untapping up to seven lands.
Resolve the original Rally the Galadhrim, creating a token copy of Vampire Charmseeker.
When the Vampire Charmseeker token enters the battlefield, it triggers, returning Rally the Galadhrim from your graveyard to your hand.
Repeat, tapping the Vampire Charmseeker and Great Whale tokens when casting Rally the Galadhrim instead.