| Name | Edition | Colour | Type | Cost | Power | Rarity | $ |
|---|---|---|---|---|---|---|---|
| Cycle of Life | MR | Green | Enchantment | 1GG | Rare | 2.88 | |
| Cyclical Evolution | FS | Green | Sorcery | 3GG | Uncommon | 0.18 | |
| Cyclone | CH | Green | Enchantment | 2GG | Uncommon | 2.88 | |
| Cyclone | AN | Green | Enchantment | 2GG | Uncommon | 3.65 | |
| Cyclopean Giant | TSN | Black | Creature - Zombie Giant | 2BB | 4/2 | Common | 0.10 |
| Cyclopean Mummy | LG | Black | Summon Mummy | 1B | 2/1 | Common | 2.22 |
| Cyclopean Mummy | 4E | Black | Summon Mummy | 1B | 2/1 | Common | 2705.50 |
| Cyclopean Snare | RA | Artifact | Artifact | 2 | Uncommon | 2.81 | |
| Cyclopean Tomb | UN | Artifact | Mono Artifact | 4 | Rare | 21.04 | |
| Cyclopean Tomb | B | Artifact | Mono Artifact | 4 | Rare | 38.00 | |
| Cyclopean Tomb | A | Artifact | Mono Artifact | 4 | Rare | 51.62 | |
| Cyclopean Tomb | CE | Artifact | Mono Artifact | 4 | Rare | 15.60 | |
| Cytoplast Manipulator | DI | Blue | Creature - Human Wizard Mutant | 2UU | 0/0 | Rare | 3.68 |
| Cytoplast Root-Kin | DI | Green | Creature - Elemental Mutant | 2GG | 0/0 | Rare | 4.32 |
| Cytoshape | DI | Multi | Instant | 1GU | Rare | 3.43 | |
| Cytospawn Shambler | DI | Green | Creature - Elemental Mutant | 6G | 0/0 | Common | 3.23 |