Skelesaurus

This card is treated as a Normal Monster while face-up on the field or in the Graveyard. While this card is a Normal Monster on the field, you can Normal Summon it to have it become an Effect Monster with these effects. ● This card becomes EARTH Dinosaur-Type. When this card destroys an opponent's monster by battle and sends it to the Graveyard: You can Special Summon that monster to your field in Defense Position, and if you do, it becomes Zombie-Type.

Zombie DARK Gemini Monster 4 effect