About the new Explorer/Adventurer rings for those wondering.

I think it'd be nice if someone could make a list that tells which ring is best for which class. :x
(Including Lilin's)

Lilin's ring is an acceptable substitute for the Cruel Ring. In fact... Lilin's Ring is better than the Cruel ring in the one situation that I said the Cruel Ring was the ring to choose. Even if you don't have access to Lilin's Ring, the Crit ring still gives some attack and would be only slightly less helpful when you don't have SE/Thorns, and much more helpful when you do.

So lets try this again:

Are you an NL/BM/MM/Aran/Evan/Dual Blader?

 Yes

Use a Critical Ring

 No

Are you currently being buffed with Thorns and/or SE?

 Yes

Use a Critical Ring

 No

Are you a magician?

 Yes

Use a Magician's Ring

 No

Use Lilin's Ring

.