Gogo, Master of Mimicry + High Tide + Retreat to Coralhelm + Swarm Intelligence + Relm's Sketching

Prerequisites

• You control an Island that enters the battlefield untapped.

Steps

1. 1Cast High Tide by paying .
2. 2Cast Relm's Sketching by paying its mana cost, targeting an Island you control.
3. 3Swarm Intelligence triggers.
4. 4Holding priority, activate Gogo by paying and tapping it, copying the Swarm Intelligence ability.
5. 5Resolve the copy of Swarm Intelligence's ability, copying the Relm's Sketching spell, targeting an Island you control that enters the battlefield untapped.
6. 6Resolve the copy of Relm's Sketching, creating a token copy of the targeted Island.
7. 7When the Island token enters, Retreat to Coralhelm triggers, untapping Gogo.
8. 8Activate the Island token by tapping it, adding .
9. 9High Tide triggers, adding .
10. 10Repeat from step 4.

Effects

• Infinite landfall triggers
• Infinite magecraft triggers
• Infinite tapped Island tokens