Army of Ruin
221 Achievements
GOG
Frozen Shard
Graveyard III - Reach Experience Level 30 with Ker
23.3%
How to unlock the Frozen Shard achievement in Army of Ruin - Definitive Guide
You first need to unlock Ker by beating Graveyard III, so unfortunately that means you need to play this stage twice. Reaching Level 30 should be pretty standard by this point though, and is practically a requirement to survive the higher difficulty stages.