Snowy Owl
This owl doesn't die in Book 7.

Arcane: Summer
Base Rarity: Common
Troop Type: Beast
Troop Role: Generator
Troop Id: K15_09 / 6291
Max skills: 17    24    10    0
Kingdom: Stormheim
Kingdom Id: 3013
Trait #1: Nimble
Immunity to Entangle.
Trait #2: Insulated
Immunity to Frozen.
Trait #3: Magic Link
Gain bonus Purple Mana from Purple Gem matches.
Spell: Night Vision
Description: Destroy all Purple Gems, and create 7 Gems of a chosen color.
Mana Color: Yellow
Mana Cost: 8
Spell Id: 7437