Spike Seadra + Armed Ninja → Sword Arm of Dragon

Spike Seadra + Magical Ghost → Skelgon

Spike Seadra + Sea Kamen → Kairyu-shin

Spike Seadra + Ameba → Kairyu-shin

Spike Seadra + Boo Koo → Kaminari Attack

Spike Seadra + Rainbow Flower → B. Dragon Jungle King

Spike Seadra + Barrel Lily → B. Dragon Jungle King

Spike Seadra + Maha Vailo → Kaminari Attack

Spike Seadra + Musician King → Kaminari Attack

Spike Seadra + Yado Karu → Kairyu-shin

Spike Seadra + D. Human → Sword Arm of Dragon

Spike Seadra + Turtle Raccoon → Kairyu-shin