This is the worst base defense in the game by far. The sad thing is, they are unchanged since 2010.
Its role should be to help vs early rushes or defend vs light harass.
Early rushes (proxy 2-4 rax marines, early pools with or without gas, zealot gw rushes, different types cannon rushes. Its useless
- If you make it in a good defensive position, its too vulnerable because it takes too long to build
- If you make it in a safe position and move later, you cannot do that because the burrow time takes ages.
- The attack animation is too easy to dodge
Light harass (Hellion, mine, marine, dt, zealot). Its also useless.
- Too easy to avoid
- No dps
Some comparison too see how bad spines are:
--------------------------- Photon cannon --------------------- Spine Crawler
Health----------------------------300-----------------------------------300----------
DPS-------------------------------22,4--------------------------------18,9 + 3,8----
Cost-------------------------------150-----------------------------------150----------
Detector-------------------------Yes------------------------------------No-----------
Can target air------------------Yes------------------------------------No-----------
Build time-----------------------29-------------------------------------36------------
Also Spore crawlers burrow time is 4s while Spine crawlers burrow time is 9s.
Conclusion / My suggestions:
- Buff Spine crawlers burrow time from 9 to at least 6s.
- Nerf photon cannons build time from 29s to 36s (same as the spine).
Do it next patch. Amen.