Calming mobs is an important enchanter every day activity and CHA definitely affects the crit resist rates very much - don't think anyone will deny that.
So yeah, CHA is paramount for enchanters, for crit calm resists if anything. Maybe I don't know how to play this game but getting a crit on the first or second mob in a group of 5-6, at high levels, usually means I'm probably going to have at least quite some downtime.
As for charm durations, my gut feeling is that it does affect it but again, gut feeling ain't worth much. I wish someone would parse it with a decent sample already.
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