There are literally 2 ways to stop Castor from getting it's effect: Skill Drain/Plasma is face-up before he id
His Summon is negated (Solemn Warning etc)
There you have it.
Originally Posted by IronSideDuelist
I'd rather fire a tranquilizer dart and permanently put a Mask of Weakness on each of the Dragon Rulers and permanently bind them with Darkworld Shackles, all of those before they wake up and realize they have been weakened.