| Name | Cost | Price |
|---|---|---|
| Krark-Clan Engineers | $0.33 | |
| Krark, the Thumbless | $1.65 | |
| Kraul Raider | $0.16 | |
| Kraul Stinger | $0.08 | |
| Kraul Swarm | $0.06 | |
| Kraul Warrior | $0.04 | |
| Kraul Whipcracker | $0.06 | |
| Kraum, Ludevic's Opus | — | |
| Krav, the Unredeemed | — | |
| Kree Commandos | $0.07 | |
| Krenko, Baron of Tin Street | $0.33 | |
| Krenko, Mob Boss | $2.47 | |
| Krenko's Buzzcrusher | $0.31 | |
| Krenko's Command | $0.21 | |
| Krenko, Tin Street Kingpin | $2.88 | |
| Krile Baldesion | $0.29 | |
| Kris Mage | $0.20 | |
| Krosan Adaptation | $0.37 | |
| Krosan Avenger | $0.03 | |
| Krosan Beast | — | |
| Krosan Cloudscraper | $0.98 | |
| Krosan Colossus | $0.09 | |
| Krosan Grip | $0.77 | |
| Krosan Restorer | $0.22 |