| Name | Edition | Colour | Type | Cost | Power | Rarity | $ |
|---|---|---|---|---|---|---|---|
| Keen Sense | PC | Green | Enchantment - Aura | G | Uncommon | 0.31 | |
| Keen-Eyed Archers | PO | White | Summon Creature | 2W | 2/2 | Common | 3.59 |
| Keeneye Aven | LE | Blue | Creature - Bird Soldier | 3U | 2/3 | Common | 2.12 |
| Keening Banshee | RA | Black | Creature - Spirit | 2BB | 2/2 | Uncommon | 2.83 |
| Keep Watch | JU | Blue | Instant | 2U | Common | 2.11 | |
| Keeper of Kookus | VI | Red | Summon Goblin | R | 1/1 | Common | 2.91 |
| Keeper of Progenitus | SA | Green | Creature - Elf Druid | 3G | 1/3 | Rare | 0.49 |
| Keeper of the Beasts | EX | Green | Summon Wizard | GG | 1/2 | Uncommon | 2.84 |
| Keeper of the Dead | EX | Black | Summon Wizard | BB | 1/2 | Uncommon | 3.02 |
| Keeper of the Flame | EX | Red | Summon Wizard | RR | 1/2 | Uncommon | 3.00 |
| Keeper of the Light | EX | White | Summon Wizard | WW | 1/2 | Uncommon | 3.07 |
| Keeper of the Mind | EX | Blue | Summon Wizard | UU | 1/2 | Uncommon | 2.84 |
| Keeper of the Nine Gales | LE | Blue | Creature - Bird Wizard | 2U | 1/2 | Rare | 2.52 |
| Keeper of the Sacred Word | UH | Green | Creature - Human Druid | 2G | 2/3 | Common | 2.59 |
| Keeper of Tresserhorn | AL | Black | Summon Keeper | 5B | 6/6 | Rare | 3.15 |
| Keepers of the Faith | LG | White | Summon Keepers | 1WW | 2/3 | Common | 2.40 |
| Keepers of the Faith | CH | White | Summon Keepers | 1WW | 2/3 | Common | 2.88 |