Fire Prison - SP18-EN043 Starfoil Rare 1st Edition

All Dragon monsters on the field gain 300 DEF. If any Link Monsters are on the field, neither player can Link Summon a Link 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.