Scale Guard
Looks like his Armor "scales" pretty well with his level.

Arcane: Rage
Base Rarity: Common
Troop Type: Naga
Troop Role: Striker
Troop Id: K05_00 / 6020
Max skills: 13    24    20    10
Kingdom: Mist of Scales
Kingdom Id: 3016
Trait #1: Sturdy
Immune to Poison.
Trait #2: Frenzy
Gain 1 Attack when taking damage.
Trait #3: Swift
Start battles with 75% Mana.
Spell: Twin Fang
Description: Deal [Magic + 3] damage to an Enemy. If the Enemy is Poisoned, deal double damage. Then Poison them.
Mana Color: Red
Mana Cost: 8
Spell Id: 7020