New Cleric here, never played this far back. I went to Chronos and tried using a lv6 heal on them, it does around 63 dmg max, usually lower. So if I ranked it up to lv30 would it deal more damage? I know comparing it to current Maple is silly, but right off the bat on current Maple a lv1 heal does a ton of damage. Thanks for the feedback!
As you level up and put more points into it, it'll do more damage. Just as you said, comparing it to current maple is silly. xD