Hammer In Flavor Text Very violent Pokmon, they try to clamp down on anything that moves in front of their eyes.
Notably, a permanent that isn't a transforming permanent can't become one due to a copy effect, and it can't ever transform even if an effect instructs a player to transform it
(When a creature deals combat damage to you, its controller still becomes the monarch.) While Archon of Coronation's last ability applies, damage dealt to you still has all effects other than causing you to lose life
When Felidar Guardian comes back, you can then target the Restoration Angel and the other creature with its ETB triggers and endlessly repeat the process
So knowing about the first two Pokemon that be used with Starmie BREAK, if you're already using Starmie from the Evolutions set for its Ability, there is no reason not to include 1 Starmie BREAK card just because of its move
The deck was terrible