3 Drowned Catacomb
4 Flooded Strand
2 Glacial Fortress
2 Hallowed Fountain
3 Island
1 Plains
4 Polluted Delta
1 Swamp
2 Watery Grave
4 Counterspell
2 Dakkon, Shadow Slayer
2 Drown in the Loch
2 Engineered Explosives
2 Force of Negation
1 Knowledge Pool
3 Narset, Parter of Veils
1 Nihil Spellbomb
2 Pentad Prism
3 Prismatic Ending
1 Sword of the Meek
3 Teferi, Time Raveler
1 Teferi's Puzzle Box
2 Thopter Foundry
3 Urza, Lord High Artificer
4 Whir of Invention
Sideboard:
2 Aether Gust
4 Fatal Push
3 Mystical Dispute
1 Nihil Spellbomb
3 Thoughtseize