Don't repeat the past a third time, Yoshida.

[Kalise]

It's called Cover and already exists.
Already exists as well in form of Passage of Arms.

If you're specifically Paladin, yes.

If you're Warrior/Dork Knight then you do not get those tools.

Also, Cover just transfers damage, not Debuffs. While Passage of Arms is only 15% mitigation, while I was more envisioning something strong enough so people hide behind the tank in encounters instead of conveniently placed rocks/pillars.

In addition to being just overall examples of things Tanks could do as a form of protecting allies as a core mechanic as opposed to a niche ability a single Tank has.