| Name | Cost | Price |
|---|---|---|
| Common Courtesy | $0.27 | |
| Common Iguana | $0.07 | |
| Communal Brewing | $2.50 | |
| Commune with Lava | $0.50 | |
| Commune with Nature | $0.23 | |
| Company Commander | — | |
| Compass Gnome | $0.15 | |
| Compelled Duel | $0.24 | |
| Compleat Devotion | $0.18 | |
| Compleated Huntmaster | $0.22 | |
| Complicate | $0.27 | |
| Composer of Spring | $6.50 | |
| Composite Golem | $0.33 | |
| Compost | $0.89 | |
| Compulsion | $0.19 | |
| Compulsive Research | $0.22 | |
| Compulsory Rest | $0.14 | |
| Concealed Courtyard | $1.04 | |
| Concealed Weapon | $0.16 | |
| Concealing Curtains // Revealing Eye | $0.34 | |
| Concentrate | $0.22 | |
| Concerted Defense | $0.20 | |
| Concerted Effort | $5.57 | |
| Concession Stand | $0.15 |