Alvastia Chronicles
31 Achievements
1,000
15-20h
PC
Xbox One
Annihilator
Dealt 20000 damage in a single attack.
30
5.27%
How to unlock the Annihilator achievement in Alvastia Chronicles - Definitive Guide
You shouldn't have any issue getting this achievement. I was able to unlock this around Level 34 doing the Silver Cup on Expert difficulty. Make sure you use your more powerful Skills (not just basic attacks) and you will dish out much more than this. By the end of the game, and during the secret battle arena, you'll likely be in the hundreds of thousands of damage.
This will likely come naturally as you level up and fight higher-level monsters. The key to it will likely be Elmia's Random Up buff, where she'll randomly just raise the power of a character's skill attack.
I got this by flying to the small island in the northwest corner of the map. When I was around Level 45, I used Gil's Aerial Impact skill attack (with the bond setting Magical Hymn) against one of the large centipede enemies. Elmia activated Random Up and I hit the centipede for around 50,000 damage. I would imagine that when Gil levels up more, Aerial Impact on its own would unlock this trophy when used against a higher-level monster.
I got this by flying to the small island in the northwest corner of the map. When I was around Level 45, I used Gil's Aerial Impact skill attack (with the bond setting Magical Hymn) against one of the large centipede enemies. Elmia activated Random Up and I hit the centipede for around 50,000 damage. I would imagine that when Gil levels up more, Aerial Impact on its own would unlock this trophy when used against a higher-level monster.