New healer; getting Sage to 80?

[Deceptus]

4) physis is your AOE regen, it also applies a healing action ho buff for 10%, this will increase all healing actions including your heals, cohealer heals, tank self healing and everything else, it is useful for both it’s regen and healing

Small quibble, there's no reason to not use Physis on Trash Pulls as it's a really good maintenance heal combined with Kardia. It allows for almost constant DPS.

Combos:

Krasis + Physis + Kerachloe = ridiculous regen healing with 10% mitigation. Throw in One of the Haimas if the pull is extra spicy. This is available almost every single pull for most groups.

Holos + Taurochloe + Soteria = 20% mitigation with extra heals while you AoE damage. That combined with a tank who knows what they're doing and mitigating on themselves basically means they're taking minimal damage.

Zoe + Pneuma = huge aoe heal.

The key thing is to remember you need to be doing this stuff BEFORE the tank is in a bad way. You are not a reactive healer. Sage has very few oh Sh!t buttons. If you're falling behind, you're losing.