How it works
Prerequisites
- You control an Island that enters the battlefield untapped.
Steps
- 1Cast High Tide by paying .
- 2Cast Relm's Sketching by paying its mana cost, targeting an Island you control.
- 3Holding priority, activate Overloaded Mage-Ring by paying , tapping and sacrificing it, targeting the Relm's Sketching spell.
- 4Holding priority, activate Gogo by paying and tapping it, copying the Overloaded Mage-Ring ability, targeting the Relm's Sketching spell.
- 5Resolve the copy of Overloaded Mage-Ring's ability, copying the Relm's Sketching spell, targeting an Island you control that enters the battlefield untapped.
- 6Resolve the copy of Relm's Sketching, creating a token copy of the targeted Island.
- 7When the Island token enters, Retreat to Coralhelm triggers, untapping Gogo.
- 8Activate the Island token by tapping it, adding .
- 9High Tide triggers, adding .
- 10Repeat from step 4.
Commander brackets
In which brackets is this combo allowed, per Spellbook's Exhibition tier?