Arknights comparing Mountain to Thorns and Blaze
Thorns, Blaze and Mountain are all Lvl 90 and M3
I feel like i need to say this again, I'm not comparing which of these 3 Operators is better, I'm just showing how different is Mountain from his other two Cornerstones. Mountain is cheaper and his skill only requires 5 SP, can heal really fast with his S2
While Thorns requires quite a while to charge he can Attack aerial enemies and has huge range.
Blaze also requires a while to charge but she high DEF and can attack 3 enemies at a time