Liturgy of the Bell is underwhelming and needs some QoL changes.

[Silver-Strider]

Mostly because of its long cooldown.
The potency is actually pretty damn high but the cooldown paired with the way it works puts a lot more restrictions on it than it deserves. Even in an absolute worst case where the raid drops to 1 HP but doesn't trigger Lilybell because it's not counted as taking damage, it's a 1000 potency megaheal.
You need to plan it well for single hits but the potency isn't the problem and planning heals is part of a good healer anyway. 3min cd is just way too high. I wouldn't mind seeing it changed to how Panhaima works but a major cooldown reductions is definitely necessary.

So you don't see anything wrong with a skill, who's entire design is based on Ark Morn-esque mechanics, being used as little more than an Earthly Star?