Ple-Sen
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Just wanted to create something cool and interesting using the mana transfer to HP skill. Oh well.
Added 4 minutes later
Revan, a character with inexhaustible power, is unable to heal himself with magic?
Added 2 minutes later
Power Surge should also work very well.
Added 2 minutes later
With a magic stat of 8, 1 unit of your HP will be equal to 2.6 units of Water Bolt damage. Against most enemies, this will be a buffed Spear. Well, with a correction for range.
Added 1 minute later
Oh, and if you also take Water Affinity, then it will be 3.9 damage. Nice.