he is not aggroing when in range. he deals too much damage around 1k per hit or skill.
The drop rate for kaliga key also too high, sorry i dont have checked dropinfo.
Fixed. The two relics no longer reset when you hit them. Breaking one removes its buff from Kaliga for 10 seconds before it comes back. Kaliga's Key now drops about one kill in three (32.5%) instead of every time. His damage was lowered (attack 611 instead of 1,039). The aggro-range part is still being looked into.