Gravity Monster

Gravity Monster is a new Summon mechanic created by LHK.

Design
Color-wise, Gravity Monsters are colored ble top half  and purple bottom half .

Mechanic
Gravity Monsters are stored in a special deck called Gravity Deck. To Summon them, they need a specific monster, called Force monster, whose sum of ATK and DEF equals that monster's Gravity Indicator, which is listed between its Materials and effect. For example, for a monster with a Gravity Indicator of 4000, you need a monster with 2000 ATK and DEF, or a monster with 2500 ATK and 1500 DEF, but not a monster with 2500 ATK and 2000 DEF. Note that you can only Gravity Summon once per turn.

Examples
Example: Fermion Magician (ATK: 1500/DEF: 2000 Force)
 * Giant Tail Gravity Dragon: Level 7 ("1 Level 4 or lower EARTH Force ● Gravity Indicator: 3500")

Rulings

 * Since it is not a Special Summon from the Extra Deck, they are immune to Link Monsters' rules, thus they are placed to the.