Sorceress blocking%

[AtomicKitKat]

Blaze works fine too. Inferno too, since the synergy in Warmth would increase your damage anyway. Thunderstorm at high levels(assuming you could cast it the first time), would probably last long enough to let your whole ball refill. Ditto the cold armours. In fact, any of the Sorceress' non-instant(duration-based) spells can be done with a low mana build, provided you have enough to cast it the first time, since most of them will last longer than the 2 minutes it takes to completely refill the orb.