Arcane Golem
Where does the wind-up key go?

Arcane: Plains
Base Rarity: Ultra-Rare
Troop Type: Construct
Troop Role: Defender
Troop Id: K33_11 / 6621
Max skills: 19    13    22    4
Kingdom: Hall of Guardians
Kingdom Id: 3042
Trait #1: Deep Strength
Gain 7 Attack when attacking Delves.
Trait #2: Spell Armor
Reduce damage from Spells by 25%.
Trait #3: Stoneskin
Reduce damage from Skulls by 50%.
Spell: Arcane Strength
Description: Explode a gem. Stun a random enemy for every Yellow Gem destroyed. Gain [Magic + 1] Attack. [1:1]
Mana Color: Yellow, Purple
Mana Cost: 13
Spell Id: 7939