Why is heal necessary?

[Lsky]

I came originally to ask why its so easy to run out of mana when I invest a lot in int, but now im wondering if its because I didnt spec into the mana regen under the heal spell. On my warrior vengeful blood is a staple spell for me because it ensures unlimited mana, is this the same for sorcs with heal?

[Luniette]

Heal doesn't really help all that much for a Sorceror.
Personally I'm not even sure if it returns the caster any mana. Pretty sure I have my Heal maxed (too lazy to check) even now and whenever I cast it it seems to take 5% mana that regenerates back to the original position in like 5-10 seconds. That's with naked 500HP worth of STR and the rest in INT.

On the actual Heal usage I feel it's worth it to take the strain off the tanks who in turn keep you alive by keeping the aggro. It might not feel worth it in the beginning but the higher level bosses and the new updates sure bring in the whole different game.

EDIT: Checked the skill and I had all but the range extender update. The regular heal costs 5%, but a charged one (as said in description, i had just missed it) returns 5% extra, meaning 10% total if you take cost into account.
The mana regen afterwards is not really noticeable, at least not with my mana pool. Maybe it's more useful in the lower levels where some +5 regen actually helps.

[DOllieBerry]

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[Arachnophobik]

PvP. Personally hate mage heal on PvE.

[Ante Tavra]

Long time ago when gold had higher value and was to expensive to buy mana and health potions, heal from sorc was great skill in pvp and in pve, but when sts introduced gold loot heal became useless in pve since you can just stack potions and you will be fine, while in pvp heal is still relevant.