| Name | Edition | Colour | Type | Cost | Power | Rarity | $ |
|---|---|---|---|---|---|---|---|
| Auramancer's Guise | PC | Blue | Enchantment - Aura | 2UU | Uncommon | 0.21 | |
| Brine Elemental | TSN | Blue | Creature - Elemental | 4UU | 5/4 | Uncommon | 0.22 |
| Careful Consideration | TSN | Blue | Instant | 2UU | Uncommon | 0.31 | |
| Dismal Failure | PC | Blue | Instant | 2UU | Uncommon | 0.20 | |
| Fledgling Mawcor | TSN | Blue | Creature - Beast | 3U | 2/2 | Uncommon | 0.15 |
| Fool's Demise | TSN | Blue | Enchantment - Aura | 4U | Uncommon | 0.15 | |
| Frozen Aether | PC | Blue | Enchantment | 3U | Uncommon | 0.21 | |
| Ghost Ship | TSS | Blue | Creature - Spirit | 2UU | 2/4 | Uncommon | 3.65 |
| Giant Oyster | TSS | Blue | Creature - Oyster | 2UU | 0/3 | Uncommon | 3.65 |
| Jodah's Avenger | PC | Blue | Creature - Shapeshifter | 5U | 4/4 | Uncommon | 0.16 |
| Merfolk Assassin | TSS | Blue | Creature - Merfolk Assassin | UU | 1/2 | Uncommon | 3.93 |
| Ovinize | PC | Blue | Instant | 1U | Uncommon | 0.20 | |
| Ovinomancer | TSS | Blue | Creature - Human Wizard | 2U | 0/1 | Uncommon | 3.65 |
| Paradox Haze | TSN | Blue | Enchantment - Aura | 2U | Uncommon | 0.29 | |
| Pongify | PC | Blue | Instant | U | Uncommon | 0.29 | |
| Psionic Blast | TSS | Blue | Instant | 2U | Uncommon | 8.63 | |
| Riftwing Cloudskate | TSN | Blue | Creature - Illusion | 3UU | 2/2 | Uncommon | 0.31 |
| Riptide Pilferer | PC | Blue | Creature - Merfolk Rogue | 1U | 1/1 | Uncommon | 0.17 |
| Sindbad | TSS | Blue | Creature - Human | 1U | 1/1 | Uncommon | 3.78 |
| Spell Burst | TSN | Blue | Instant | XU | Uncommon | 0.26 | |
| Stormcloud Djinn | TSN | Blue | Creature - Djinn | 4U | 3/3 | Uncommon | 0.15 |
| Telekinetic Sliver | TSN | Blue | Creature - Sliver | 2UU | 2/2 | Uncommon | 0.31 |
| Tidewalker | PC | Blue | Creature - Elemental | 2U | */* | Uncommon | 0.17 |
| Timebender | PC | Blue | Creature - Human Wizard | U | 1/1 | Uncommon | 0.17 |
| Truth or Tale | TSN | Blue | Instant | 1U | Uncommon | 0.27 | |
| Venarian Glimmer | PC | Blue | Instant | XU | Uncommon | 0.17 | |
| Voidmage Husher | TSN | Blue | Creature - Human Wizard | 3U | 2/2 | Uncommon | 0.16 |
| Whispers of the Muse | TSS | Blue | Instant | U | Uncommon | 3.87 | |
| Willbender | TSS | Blue | Creature - Human Wizard | 1U | 1/2 | Uncommon | 3.79 |
| Wipe Away | TSN | Blue | Instant | 1UU | Uncommon | 0.28 |