I'm showing:
Level 1: No range penalty... So what's their bonus and damage? If it's more than 10 per week, then...
Level 2: Same problem.
Level 7: How do I kill it??? Is it overpowered???
Race ability... Either change it or weaken it (Level 1: -2 health per turn, Level 2: -3, Level 3: -5. Ultimate level: -7).
I've made some changes. See the changes in post #1.