Color Identity: U

Initial Card State
- Palinchron in hand.
- Donal and Cloudstone Curio on the battlefield.
Notable Prerequisites
- You control up to seven lands that can tap to produce at least ({4} magic symbol)
({U} magic symbol)
({U} magic symbol)
. - You have not copied a spell with Donal this turn.
Mana Needed
- ({5} magic symbol)
({U} magic symbol)
({U} magic symbol)
available.
Steps
- Cast Palinchron by paying ({5} magic symbol)
({U} magic symbol)
({U} magic symbol)
. - Donal triggers, creating a copy of the Palinchron spell that is a 1/1 Spirit in addition to its other types.
- The copy of Palinchron enters the battlefield, triggering itself and Cloudstone Curio.
- Resolve the Palinchron trigger, untapping up to seven lands that can tap to produce at least ({4} magic symbol)
({U} magic symbol)
({U} magic symbol)
. - Resolve the Cloudstone Curio trigger, returning Donal from the battlefield to your hand.
- Activate seven lands by tapping them, adding at least ({4} magic symbol)
({U} magic symbol)
({U} magic symbol)
. - Resolve the original Palinchron spell from step 1.
- Palinchron enters the battlefield, triggering itself and Cloudstone Curio.
- Resolve the Palinchron trigger, untapping up to seven lands that can tap to produce ({4} magic symbol)
({U} magic symbol)
({U} magic symbol)
. - Resolve the Cloudstone Curio trigger, choosing not to return anything to your hand.
- Cast Donal by paying ({2} magic symbol)
({U} magic symbol)
({U} magic symbol)
. - Donal enters the battlefield, triggering Cloudstone Curio, returning Palinchron from the battlefield to your hand.
- Activate seven lands by tapping them, adding at least ({4} magic symbol)
({U} magic symbol)
({U} magic symbol)
. - Repeat.
Results
- Infinite creature tokens.
- Infinite ETB.
- Infinite LTB.
- Infinite mana lands you control can produce.
- Infinite storm count.
Bracket Tag
This combo has been estimated to be Exhibition (Bracket 1+).