Noncreature permanent castable for ({0} magic symbol)
Prerequisites
Valley Floodcaller on the battlefield.
Retraction Helix and Noncreature permanent castable for ({0} magic symbol) in hand.
You control a Bird, Rat, Otter and/or Frog that does not have summoning sickness.
({U} magic symbol) available.
Steps
Cast Retraction Helix by paying ({U} magic symbol) , targeting a Bird, Rat, Otter and/or Frog you control that does not have summoning sickness.
Valley Floodcaller triggers, giving Birds, Otters, Frogs and Rats you control +1/+1 until end of turn and untapping them.
Resolve Retraction Helix.
Cast the noncreature permanent by paying ({0} magic symbol) .
Valley Floodcaller triggers, giving Birds, Otters, Frogs and Rats you control +1/+1 until end of turn and untapping them.
Activate the creature targeted by Retraction Helix by tapping it, returning the noncreature permanent cast in step 4 from the battlefield to your hand.
Repeat from step 4.
Results
Infinite storm count.
Infinite untap of Birds, Otters, Rats and Frogs you control.
Infinitely large Birds, Otters, Rats and Frogs you control until end of turn.