20 Island
1 Chart a Course
4 Curious Obsession
4 Dive Down
2 Essence Capture
4 Merfolk Trickster
1 Mist-Cloaked Herald
1 Negate
4 Opt
4 Pteramander
4 Siren Stormtamer
3 Spell Pierce
4 Tempest Djinn
4 Wizard's Retort
Sideboard:
4 Entrancing Melody
1 Essence Capture
2 Exclusion Mage
2 Kasmina's Transmutation
3 Negate
3 Surge Mare