The Avatar of Destiny is a final boss in certain Dark Mode chapters, presenting a significant challenge with its complex mechanics and high damage. It often has multiple phases and requires precise skill timing.

Key Mechanics:
- Phase 1: Standard attacks, but high damage.
- Phase 2 (Summons): Summons minions that must be dealt with quickly, or they empower the boss.
- Phase 3 (Enrage): Becomes significantly stronger, often with a powerful ultimate attack.
Strategy:
- Team Composition: A highly optimized team is required. Often involves a strong tank, two powerful damage dealers, and two robust support/healers. Cookies with debuffs (e.g., DEF shred, ATK reduction) or crowd control can be very effective.
- Toppings: All Cookies should have highly upgraded, optimal Toppings with good substats. DMG Resist is crucial for everyone, not just tanks.
- Treasures: Squishy Jelly Watch, Old Pilgrim's Scroll, and Sugar Swan's Shining Feather are almost mandatory. Consider the 'Blind Healer's Staff' for additional healing if needed.
- Combat: Focus on surviving Phase 1 while building up skill gauges. In Phase 2, use AoE skills to quickly eliminate summoned minions. Save burst damage and invincibility skills (if you have them) for Phase 3 to survive the enrage phase and finish the fight. This fight often requires multiple attempts to learn the timing.