Plasma Monsters are a new type of monsters colored aquamarine. They are stored in the Extra Deck. They have a Rank instead of a Level. Unlike Xyz Monsters, Plasma Monsters have the right alignment for card effects.
How to Plasma Summon
If you have 2 or more (max. 5) Rank X Xyz Monsters in your possession, you can send them to the Graveyard to Summon a Plasma Monster from your Extra Deck whose Rank is equal to the Rank of the monsters sent to the Graveyard. The Xyz Materials that the Plasma Materials had before the Plasma Summon are attached to that monster as Plasma Materials (Plasma Materials), that they are attached just like Xyz Materials, but they are not affected by cards like "Overlay Capture".