- Larvae Moth
- Laser Cannon Armor
- Last Chance
- Last Magnet
- Last Resort
- Last Trick
- Last Turn
- Last Tusk Mammoth
- Late Penalty
- Launcher Spider
- Lava Battleguard
- Lava Golem
- Lazion, the Timelord
- Lead Compass
- Leading Question
- Leaf Transformation
- Left Arm of the Forbidden One
- Left Arm Offering
- Left Leg of the Forbidden One
- Legend of Heart
- Legendary Fiend
- Legendary Sword
- Leghul
- Legion the Fiend Jester