[MothEnthusiast]

On the note of exgalfa, that's ONLY if you waste an additional 3 momentum to prevent yourself from being in melee. Be it from High Speed Divine Words before invoking (which can't be done the same turn AS invoking) so that you can get the spell off with 6M, or using blink (thus back to my earlier point of straight up wasting 3M to not die to your own attack, as you can't use any 1m movement options without breaking the invocation) after casting, because even with lazarus wind, someone can get back to melee range rather easily (with damage; kagekiri, hanging, sidecut with some sort of range boost, the list goes on) before your next turn where you'd actually cast the spell. And with CM nerfed now, you aren't even doing respectable damage for the risk.

Quick Edit for additional context on the crit argument: The biggest offender in the 'multiple chances to crit' regard are guns, as they can have as many as 4 shots as opposed to fists' 2. And guess what-- they don't proc against riposte, even in melee range, because they're ranged weapons.