A channeled raid-wide heal that pulses healing over a 5-second channel. Each pulse also applies a stacking buff that increases healing taken by 4%, and that buff lingers for 15 seconds after the channel ends.

The raidwide healing amp is the majority of the spell's value, the direct healing is almost secondary. Because the buff carries on well past the channel, Divine Hymn keeps amplifying every other healer's output for a long window after the priest stops casting, which is what makes it one of the strongest raid cooldowns in the game.

Assign on damage windows that benefit from both the channel and the lingering healing-received buff. It is a channel, so the priest needs to plant their feet for the full duration, avoid assigning it into forced-movement phases.