Enternius said:
T1=960, T2=1440, T3=1920, Odin=2880. Ampoules are gained based on how many normal mobs you kill, not on whether or not you win. The bosses themselves, except for Odin, give 0 Ampoules.
T1 and T2 can be done with a single alliance, but T3 is a lot harder. Surprisingly enough, Odin is easier than any of the wings and can be done with about 15 give or take.
Going with less than 2 alliances of some fashion can be risky, since Einherjar is random. My shell as quite a bit of talent in it, a few relic weapons, and 42 active members.
So we get about 32 each run, and we *have* lost T2/T3 before. Ever after doing it for nearly 2 years. Since the mob distribution is random, you might get some very unfortunate combinations of mobs/bosses that you just may not be equipped to handle.
I've seen T1 cleared with 9. But that doesn't mean I'd recommend doing it every time...