I'm gonna have to agree with the others too. I play an SP solo in arenas, currently just 2v2 and lately a single of week of 3v3. Moving up to 3v3 was insane. Without enough CC, I was the first one dead every time. A few of the games it was all I could do just to keep myself alive, which bought my teammates time, but means I didn't do any damage.. at all. As for mana, I've rarely had fights in 2v2 where mana was an issue because of the shadowfiend and free mana proc (I never remember the names of anything of these things, it's merely a neuron path to a keystroke for me). Anyway, we did have one 3v3 that ended in us sitting down to drink and go at it again, which was totally insane. There's is definitely a *huge* survivability issue with SP's which is why I think Disc is the new fad, with pain suppression and so forth.