Avenger

Description
Avenger is immobile and retaliates with projectiles when getting hit.

Strategy

 * Stay to stay in the furthest column to give yourself more time to dodge the projectiles.
 * Use spells that deal a lot of damage with a single hit to avoid creating multiple projectile waves.
 * and can deal damage without triggering retaliation.
 * Spells that hit other rows lets you attack more safely, especially at higher tiers.