King Silenus
The internet has voted: Goaty McGoatface.

Arcane: Storm
Base Rarity: Legendary
Troop Type: Wildfolk
Troop Role: Warrior
Troop Id: K08_11 / 6384
Max skills: 16    27    22    12
Kingdom: Pan's Vale
Kingdom Id: 3003
Trait #1: Wildfolk Shield
Allied Wildfolk gain 2 Armor.
Trait #2: Impervious
Immune to all Status Effects, Devour, and Mana Burn.
Trait #3: Wild Mana
All Wildfolk start battle with 50% Mana.
Spell: Slash & Burn
Description: Deal [Magic + 4] splash damage to an Enemy, boosted by Wildfolk Allies. Steal 1 Magic from all Enemies affected by my spell, then Burn all Enemies. [6x]
Mana Color: Red, Yellow
Mana Cost: 14
Spell Id: 7539