Defeat waves of robot enemies. Area of Effect (AOE) damage is the priority — it is the key to success.
Two proven setups depending on your investment level. Both are battle-tested on server #1142.
If you don't have Zora, replace her with Doug. The trio holds up well even at modest investment.
The highest-ceiling lineup if you have all three at solid investment. Top of the leaderboard territory.
Don't sleep on ground abilities. This event rewards investment that most players overlook.