Here is the full list of all 22 Ampguard achievements.
Finish 10 talisman challenges in one level.
Finish the first level with every start shard.
Kill an enemy who suffers one or more status effects.
Effect an enemy with two or more status effects.
Choose every loot after killing a boss two times or more.
Finish a Room without taking damage.
Finish a Stage without taking damage.
Finish a Level without taking damage.
Defeat every Miniboss in one level.
Defeat every Miniboss in an entire run.
Have two identical shards in your actionbar, and use them back to back.
Finish a run where all your shards are amplifier with the same talisman.
Reach the maximum Amp-Level.
Die while beeing affected by two negativ effects, for example slowed and stunned.
Stay inside a combat zone for more than 15 minutes.
Finish a run with at least half of every possible character name.
Fill your entire actionbar with shards of rank 2 or higher.
Defeat the final boss for the first time.
Reach a score of 15.000 points.
Fill your inventory with at least 20 shards
Activate two shards back to back, outside of a safe zone, within the same combat zone, with a difference in rank of two ore more. There is no time limit.
Have Shard with a Talisman in every slot of your actionbar.