Quote Originally Posted by LilimoLimomo View Post
As much as I think healers need more to do, I don't think giving tanks the ability to explicitly create an additional need for healing is a good idea.

If it was a mechanic in a specific fight maybe, something the boss does to the players? Sure. But not something players do to themselves that then creates a need other players have to fill.
What makes it work well in Genshin is that characters that have a need to heal themselves are able to provide that healing they need. Which is why I used Warrior as an example. Healers just make those mechanics significantly easier and faster.

In Genshin, I have the character Lyney who uses a bow and arrow. Bow users can charge an arrow by holding down the attack button to release an elemental arrow during combat. When Lyney does this, his charged shots consume 20% of his HP to summon a decoy object called a "Prop Arrow" that distracts enemies and eventually released a fire explosive and disappears. Every time he does this, he gets a stack of a buff unique to him, up to 5 stacks. He cannot reduce his own HP below 60% by doing this, though. When you use his skill, he deals a burst of Pyro damage that gets stronger and heals him based on the number of stacks you've gained. While he's able to sustain his own HP this way, having a healer who can provide healing over time to him makes him considerably stronger since he can keep burning that excess healing to gain more stacks, and then get back all his HP after he uses his skill.