Why are there no multi-hit skills on Sage?

[Renathras]

Look at what...

Honestly, I'd go more the Whispering Dawn route. Instead of Physis, give it an AOE Kardia on a 60 sec CD at that level. Granted, it has Prognosis where SCH doesn't have any baseline AOE heal until Succor, but...SGE also starts at level 70, so it's not like that'd be an issue.

AOE kardia vs physis 2...

Thing is, you don't need that for casual content. Casual content is designed to be Medica 1 spam healed, and SGE has Prognosis that is functionally...well...identical to Medica 1. It's SLIGHTLY weaker, but not enough to matter in Sashtasha or even Aetherfont. Like, considering you can heal Aetherfont without issue with only oGCDs, I'm pretty sure you could heal it with just Diagnosis and Prognosis. As I say fairly frequently, MSQ content isn't designed to be super engaging to high end players, so there'd be no change there. High end players just actually COULD heal it with only Kardia. Which...actually might make it more engaging. I know not a LOT more engaging, but think about how many people think AST is more engaging due to Cards. And it's not like you need a LOT of abilities to do this.

AOE Kardia: 60 sec CD, 10 sec duration, basically the next 3-4 attack spells, but that's roughly the equivalent to an AOE Cure 1.5, which is sufficient for general healing. [OR 30/6 sec respectively, half to be more like Emergency Tactics).
Kardia 2: 60 sec CD, 6 sec duration, basically the next 2 attack spells, lets you spot heal a second target or double up on healing your tank.
Soteria: Somewhat how it works now, though I'd cut the stacks down to 2 stacks (from 4) and the CD down to 30 sec. This should be your Durochole level healing tool and actually interact with Kardia. Think Emergency Tactics' short CD.
Krasis changed to increasing healing effects you do by 10%. "But that's a nerf". Works with AOE Kardia and Kardia 2. "Oh...okay then". In case you need to buff up single target healing through the roof or use with your AOE healing.

High end players could probably juggle those skills, possibly with some mitigation abilities (Tauro/Kerachole; nerf their healing but the mit is still valuable) to get their party through while maximizing damage output, but for casual players doing MSQ/roulettes, they can freely fall back on Diagnosis and Prognosis (or just go through content Diagnosis spamming) and clear the content just as well as a Cure1/Medica spamming WHM can.

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I mean, YES, they could do more with it (a DPS rotation where combo actions did more healing, etc), but even just the above would make SGE functional with BOTH a Dosis + smart oGCD use AND a Diag/Prognosis spam "MSQ Jimmy Casual" playstyle. For casual content, of course.