Spike Seadra + Mushroom Man #2 → Sword Arm of Dragon

Spike Seadra + Lava Battleguard → Sword Arm of Dragon

Spike Seadra + The Wandering Doomed → Skelgon

Spike Seadra + Steel Ogre Grotto #1 → Metal Dragon

Spike Seadra + Pot the Trick → Stone D.

Spike Seadra + Oscillo Hero → Sword Arm of Dragon

Spike Seadra + Darkworld Thorns → B. Dragon Jungle King

Spike Seadra + Witch of the Black Forest → Kaminari Attack

Spike Seadra + Leo Wizard → Kaminari Attack

Spike Seadra + Abyss Flower → B. Dragon Jungle King

Spike Seadra + Patrol Robo → Metal Dragon

Spike Seadra + Weather Report → Kairyu-shin