SMN does not need Sustain back. It needs an Enhanced Rouse.
Please stop asking for Sustain back. Old sustain was 8% every 3 seconds for 10 seconds... Thats 24-32% of your pets hp... every 10 seconds. That is just awful. It is literally a GCD that will rot your DPS and the braindead SMN/SCH that think its helping.
Yoshi-P has already said physick won't be getting the INT based RDM treatment for lore reasons, and even if it did, you face the same issue. You are wasting GCDS and you have to add yet another button to your bar!
Instead, they should change Rouse. Give it a heal over time effect or a full heal. If going the heal over time effect, they should extend the duration of Rouse to 21 seconds.
https://ffxiv.gamerescape.com/w/imag...Rouse_Icon.png Rouse-
Increases healing magic potency and damage dealt by pet by 40%.
While roused, pet will be immune to stun, sleep, bind, and heavy.
Additional effect- Pet is healed 16% of its health every 3 seconds. (Comes out to 106% of their health. Rouse gets buffed by 1 second OR full heal effect.)
Duration: 21s