Main deck (60) 4 Aether Channeler 4 Castle Vantress 2 Deduce 4 Dour Port-Mage 4 Essence Flux 16 Island 2 Lonely Sandbar 3 Mana Leak 4 Memory Lapse 3 Naban, Dean of Iteration 1 Riptide Laboratory 4 Sapphire Medallion 4 Sea Gate Oracle 2 Thassa, Deep-Dwelling 3 Venser, Shaper Savant Sideboard (15) 2 Detection Tower 2 Engulf the Shore 3 Fresh Start 3 Repeal 1 The Filigree Sylex 3 Tidebinder Mage 1 Void Mirror