Plague Rat
A plague on both your houses.

Arcane: Beast
Base Rarity: Ultra-Rare
Troop Type: Wildfolk
Troop Role: Generator
Troop Id: K43_01 / 6707
Max skills: 15    32    11    5
Kingdom: Dark Pits
Kingdom Id: 3049
Trait #1: Cursed Touch
Inflict Curse when dealing Skull damage.
Trait #2: Deep Vitality
Gain 9 Life when attacking Delves.
Trait #3: Impervious
Immune to all Status Effects, Devour, and Mana Burn.
Spell: Toxic Spill
Description: Explode [Magic + 1] Brown Gems, then Poison and Disease 2 random Enemies.
Mana Color: Green, Red
Mana Cost: 12
Spell Id: 8064