Once per turn, when an attack is declared involving this card and an opponent's monster: You can target that opponent's monster negate the attack, and if you do, destroy that target, and if you do that, inflict damage to your opponent equal to the ATK the destroyed monster had on the field. Monsters your opponent controls cannot target Synchro Monsters for attacks, except this one. (This Special Summon is treated as a Synchro Summon.) If this card is Special Summoned: You can make as many face-up monsters your opponent currently controls as possible have their effects negated, and if you do, destroy them. If a Synchro Monster is Synchro Summoned to your opponent's field while you control ' Supreme King Z-ARC', you can Special Summon this card (from your Extra Deck or Graveyard) by Tributing 2 ' Supreme King Dragon' monsters.