- Buster Knuckle
- Buster Pyle
- Butterfly Charm
- Butterfly Dagger - Elma
- Butterfly Swarm
- Butterflyoke
- Butterspy Protection
- Bye Bye Damage
- Byroad Sacrifice
- Cabrera Stone
- Caligo Claw Crow
- Call of the Earthbound
- Call of the Haunted
- Camouflage Gardna
- Cannon Soldier
- Cannon Wheel
- Cannonball Spear Shellfish
- Capture Snare
- Carboneddon
- Card Blocker
- Card Breaker
- Card Defense
- Card Destruction
- Card Exchange