
Originally Posted by
Rawrz
Shields are heals. They are just heals that cannot be stacked. Every time you cast Adlo or Succor you are healing for 600 and 300 respectively, so long as damage is incoming within 30 seconds. If you shield before the damage is incoming, you are losing 150 potency or half of the heal. Players also have natural health regain. You can shield before the attack if it makes you feel safer, but its a 50% overheal. You are costing yourself 2 GCDs, when 1 would be sufficient. An exception would be when massive raid wide damage is about to go out, and you need the extra healing, like in Sephirot during the third phase with adds. Shielding with succor during the knockback. Virus. Emergency Tactics. Precasting Succor. Succor. Indom. But even that is overheal if you have a good healing partner. (Thats 150+300+300+400 x 8 potency in 6 seconds.) In MOST content, precasting a shield, when you could be DPSing is an overheal.
Typically though on a single target, if you Adlo for that 600 potency heal (your 616 heal, 616 shield,) your fairy will be given more time to assist you, having 1.5x as much time to help heal.
Go into a pull. Tank has adlo (maybe even SS).Spamming Embrace at even 100% health. Popping rouse as bio or aero enters your rotation. Fairy can't keep up. CS off. Lustrate. Adlo. CS on. Thats 1200 potency in heals, while the fairy helps to keep up. Its even easier at 50 and below content, because the fairy nerf drops embrace from 300 at level 50 to 200 at level 60.
Adlo and succor are effecient healing spells that focus on retaining the heal if it would be overheal, but are inefficient if you try to stack them on themselves.