| Name | Cost | Price |
|---|---|---|
| Conspiracy | $0.43 | |
| Conspiracy Theorist | $0.60 | |
| Conspiracy Unraveler | $0.24 | |
| Constricting Sliver | $0.39 | |
| Constricting Tendrils | $0.03 | |
| Construct a Cosmic Cube | $0.37 | |
| Consulate Crackdown | $0.15 | |
| Consulate Dreadnought | $0.27 | |
| Consul's Lieutenant | $0.16 | |
| Consul's Shieldguard | $0.05 | |
| Consult the Star Charts | $4.14 | |
| Consume Spirit | $0.07 | |
| Consume Strength | $0.12 | |
| Consuming Aberration | $0.23 | |
| Consuming Ashes | $0.17 | |
| Consuming Blob | $0.43 | |
| Consuming Bonfire | $0.15 | |
| Consuming Ferocity | $0.20 | |
| Consuming Tide | — | |
| Consuming Vapors | $0.34 | |
| Consuming Vortex | $0.14 | |
| Consumptive Goo | $0.53 | |
| Contagion | $2.49 | |
| Contagion Clasp | $0.42 |