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.

Watchmetank Affliction 13 casts · sequence

Spell	Casts	Per min
Seed of Corruption	3	18.5
Life Tap	2	12.3
Shadow Bite	2	12.3
Life Tap	2	12.3
Demonic Siphon	1	6.1
Create Fel Healthstone	1	6.1
Ritual of Souls	1	6.1
Create Soulstone	1	6.1

Holywarr Protection 9 casts · sequence

Spell	Casts	Per min
Revenge	2	12.3
Cleave	2	12.3
Create Fel Healthstone	1	6.1
Thunder Clap	1	6.1
Shield Slam	1	6.1
Commanding Shout	1	6.1
Shockwave	1	6.1

Healbot Unholy 8 casts · sequence

Spell	Casts	Per min
Claw	4	24.6
Blood Boil	1	6.1
Plague Strike	1	6.1
Icy Touch	1	6.1
Death Coil	1	6.1

Kurro Holy 6 casts · sequence

Spell	Casts	Per min
Flash of Light	3	18.5
Judgement of Wisdom	1	6.1
Holy Shock	1	6.1
Holy Light	1	6.1

Sbg Enhancement 6 casts · sequence

Spell	Casts	Per min
Fire Nova	2	12.3
Call of the Elements	1	6.1
Lightning Shield	1	6.1
Totemic Recall	1	6.1
Stormstrike	1	6.1