Metal spikes evolution

Cost of the 1st level:

8000 CRP 2
With metal needles that have great penetrating power, units of the pack seeking attack to the structure of enemy unit directly bypassing a shield. The Overmind knew how to reduce the size of the tip of the needle projectiles, so they can penetrate deeper into the structure, causing more damage. Further evolution of needle weapons increases damage of Hydralisk, Dreadlisk, Pancor and Needle tree by 5% per level.