If you are at level 50, you can encounter EX Bosses.
"What are EX Bosses?" You might say? Well, EX Bosses are more powerful variants of Normal Bosses, even stronger than C3 Normal Boss.
EX Bandit King HP
Max SP: 100
Giant Crowbar EX
Damage: 15 x 2. Swings the Crowbar Twice, dealing 12 damage to those who fail to dodge for each swipe.
Savage Steal EX
Damage: 20. Kicks the target, dealing massive damage and stealing 50-100 Cents.
Takes 30 damage to itself, and gives a +10 POW boost to itself and +5 POW Boost to others.
Max SP: 250
Damage: 30. Stomps the foe, but unlike normal Brutalize, user takes 50 recoil damage.
Rock Storm EX
Damage: 80 (If all 4 were hit, so 20 for each hit). Throws rocks at the fighters, dealing damage.
Similar to Bandit King EX's Fury.
Nap Time EX
Rests for 3 turns, and heals 25 HP.
Info on the bosses
"The Bandit King, Having a Rainbow Aura, seems to be stronger than it's Normal Variant. Beware!"
"Bedrock seems to be a bit stronger than usual. Stay Determined!"
If you defeat A EX Boss, you will 100% get a Magical Stone and a EX Boss Card, which gives [Skill] EX.