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.

Slime Protection 16 casts · sequence

Spell	Casts	Per min
Cleave	8	22.4
Revenge	6	16.8
Thunder Clap	2	5.6

Cosmiccow Feral (DPS) 9 casts · sequence

Spell	Casts	Per min
Swipe (Cat)	5	14.0
Summon Arnold Junior	1	2.8
Thorns	1	2.8
Commanding Shout	1	2.8
Dire Bear Form	1	2.8

Priestick Holy 9 casts · sequence

Spell	Casts	Per min
Flash Heal	6	16.8
Circle of Healing	2	5.6
Prayer of Mending	1	2.8

Clegane Frost 8 casts · sequence

Spell	Casts	Per min
Frost Strike	3	8.4
Blood Boil	3	8.4
Howling Blast	2	5.6

Firecracker Arcane 7 casts · sequence

Spell	Casts	Per min
Arcane Explosion	3	8.4
Cone of Cold	1	2.8
Flamestrike	1	2.8
Arcane Blast	1	2.8
Bloodthistle	1	2.8