Trigger rate: High — Auras are triggered by casting a shield, a blade, a minion or a bubble.Passing (by choice or because of a stun) may also trigger this “may cast”. Difference between trained spell and “may cast”: The effect is of the same strength as the trained spell, but “may casts” last for one round longer than the trained spell or treasure card version (5 rounds.

Healer Spell Metrics Healers gauge spells by a couple metrics, which they can then apply to different healing scenarios. Throughput (HPCT) - This metric is defined by how much healing a spell can do after its cast, or its Healing per Cast Time.