You should now mention that the best ring to use is the Onyx Ring (i), or any imbued rings lower than that. The Onyx ring gives a nice +7 magic bonus. The Dragonstone ring (i) is a lot cheaper and gives +6 magic bonus. I believe they also give +7/+6 bonuses to all defense stats, but check me on that one. The best ring would be the Seer's Ring (i), which gives a nice +8. However, it only gives magic defense bonuses as far as I know, so the extra +1 may not be worth it. I usually don't need a Ring of Life anymore, and I'm sure many of us don't. I'd rather take one of the MA rings instead, and anyone with the rank to imbue rings should consider it. Much better than the petty +1 of the Beacon ring or the +2 of the Lunar ring (speaking of which, can be imbued as well, I think it goes to +4?).