Naxxramas Acolyte Kill

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.

Screwloose Destruction 21 casts · sequence

Spell	Casts	Per min
Seed of Corruption	12	57.0
Life Tap	4	19.0
Life Tap	4	19.0
Shadowfury	1	4.7

Clegain Protection 15 casts · sequence

Spell	Casts	Per min
Shield of Righteousness	3	14.2
Judgement of Wisdom	3	14.2
Hand of Reckoning	2	9.5
Hammer of the Righteous	2	9.5
Holy Shield	2	9.5
Consecration	2	9.5
Hammer of Wrath	1	4.7

Firecrackers Holy 12 casts · sequence

Spell	Casts	Per min
Flash Heal	4	19.0
Holy Nova	3	14.2
Circle of Healing	2	9.5
Prayer of Healing	2	9.5
Prayer of Mending	1	4.7

Skoomi Enhancement 11 casts · sequence

Spell	Casts	Per min
Fire Nova	4	19.0
Magma Totem	3	14.2
Call of the Elements	1	4.7
Chain Lightning	1	4.7
Earth Shock	1	4.7
Stormstrike	1	4.7