2 wizards of the calm = not 1 singel meele unit can ever toutch your mages
3 wizards of the deeps = 3x lightning storm, and army of lvl 20 units are dead in 1 cast
4 wizards of the deep = perma invulnerability, and with the regen you in actuallity only need 3 to do this.
wizard of the wave is only good against citys not open pvp so they are fine
and a lvl 40 wizard is easy to get.. so stop talking about those abysmall losses if you actually manage to get 1 killed.
so plz try it yourself so you actually know what your talking about.