Ascendance transforms the Shaman into a Water Ascendant for 15 seconds. During the buff, Chain Heal hits 3 additional targets and Healing Wave is guaranteed to crit and also hits a second nearby ally for 50% effect.

Base cooldown is 3 minutes, reduced to 2 minutes when First Ascendant is talented. Ascendance is the preferred throughput cooldown on this choice node. Restoration raids Totemic almost without exception, Farseer is rare enough that you should check before assuming it.

Pair it with an Evoker's Time Spiral so the Shaman can keep casting while moving during the window.

Assign whenever 15 seconds of heavy throughput is needed. Especially effective during movement-heavy phases since Spiritwalker's Grace and the buff overlap well.