if you are going for items like neiga, i would say that block is the best thing. it is great to ahve the abbilety to block if you miss tele into a gid crowd.
in fenrir windy guidy is writen 225 or so for maxblock. And i will for sure choose this baby. But Spirit is great too, for his fcr thich u need for tele. Put in on swap with cta for better bo or with wizi for faster tele. And if someone ask u how much damage u do. just swap that storm with spirit for a moment