| Name | Cost | Price |
|---|---|---|
| Kaima, the Fractured Calm | $0.26 | |
| Kain, Traitorous Dragoon | $1.00 | |
| Kairi, the Swirling Sky | $0.66 | |
| Kaito, Bane of Nightmares | $8.53 | |
| Kaito, Dancing Shadow | $0.35 | |
| Kaito Shizuki | $1.78 | |
| Kalakscion, Hunger Tyrant | $0.30 | |
| Kalamax, the Stormsire | $0.58 | |
| Kalastria Healer | $0.10 | |
| Kalastria Highborn | $0.16 | |
| Kalastria Nightwatch | $0.06 | |
| Kaldra Compleat | $8.68 | |
| Kalemne, Disciple of Iroas | — | |
| Kalemne's Captain | $0.22 | |
| Kalitas, Traitor of Ghet | $5.05 | |
| Kalonian Hydra | $5.65 | |
| Kalonian Tusker | $0.24 | |
| Kamahl, Fist of Krosa | $0.64 | |
| Kamahl, Heart of Krosa | $3.17 | |
| Kamahl, Pit Fighter | $9.99 | |
| Kamahl's Druidic Vow | — | |
| Kamahl's Sledge | $0.09 | |
| Kamahl's Summons | $0.34 | |
| Kamahl's Will | $0.34 |