Frost Tomb Trash

Instants are counted from their success event and hard casts from their cast start, because the 3.3.5a client only ever logs one or the other. A hard cast interrupted before it landed still counts — nothing in the log distinguishes it. A few spells, Arcane Missiles among them, this client announces not at all: those are counted from their own ticks instead, one cast per burst of them.

Cptdps Holy 4 casts · sequence

Spell	Casts	Per min
Holy Light	2	4.0
Sacred Shield	1	2.0
Seal of Wisdom	1	2.0

Shameris Enhancement 4 casts · sequence

Spell	Casts	Per min
Spirit Walk	2	4.0
Chain Heal	1	2.0
Lightning Shield	1	2.0