ToME: the Tales of Maj'Eyal

I've been trying to beat The Master for... oh, about the last hour and a half. Very frustrating. I thought I had read that, despite his difficulty, one great thing about the fight is that he can't heal, so eventually you should be able to whittle him down. Well... I whittled him down many times, dow...

That was absolutely the issue. Thank you!
Made me feel so dumb when I figured it out. Unfortunately, in my continued attempts to "fix the glitch," I sold all my MindStars, lol.
Thanks again.

This just began happening to my Summoner character tonight in that Draikara place. I can no longer use spells like ?Leaves Tide? and get the error message "requires two psiblades" or something like that. The spells were working earlier. I've tried unequipping and re-equipping, attuning and...