Yossef
Mono Blue Control
Mainboard(60 cards)
Creature(11)

Eddymurk Crab×4
{5}{U}{U}Creature — Elemental Crab
Eluge, the Shoreless Sea×3
{1}{U}{U}{U}Legendary Creature — Elemental Fish
Sunderflock×4
{7}{U}{U}Creature — ElementalInstant(22)

Bounce Off×4
{U}Instant
Consult the Star Charts×4
{1}{U}Instant
Opt×4
{U}Instant
Spectral Interference×4
{1}{U}Instant
Spider-Sense×4
{1}{U}Instant
Unsummon×2
{U}InstantSorcery(7)

Sleight of Hand×4
{U}Sorcery
Winternight Stories×3
{2}{U}SorceryLand(20)

Agna Qel'a×2
Land
Island×18
Basic Land — IslandSideboard(14 cards)
Creature(2)

Hydro-Man, Fluid Felon×2
{U}{U}Legendary Creature — Elemental VillainInstant(9)

Annul×2
{U}Instant
Glen Elendra's Answer×2
{2}{U}{U}Instant
Negate×1
{1}{U}Instant
Phantom Interference×2
{U}Instant
Spell Snare×1
{U}Instant
Three Steps Ahead×1
{U}InstantArtifact(2)

Ghost Vacuum×1
{1}Artifact
Soul-Guide Lantern×1
{1}ArtifactLand(1)

Cavern of Souls×1
Land