Fire Prison [SP18-EN043] Starfoil Rare

Description

All Dragon monsters on the field gain 300 DEF. If any Link Monster is on the field, neither player can Link Summon a monster with a lower Link Rating than the highest Link Rating on the field. Monsters cannot attack, except Link Monsters. Apply the following effects while 2 or more Cyberse Link Monsters are on the field.
Negate the activated effects of Cyberse monsters.
Cyberse monsters cannot attack, cannot be targeted for attacks, and cannot be targeted by card effects.