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.

Frankthelock Affliction 11 casts · sequence

Spell	Casts	Per min
Seed of Corruption	7	19.5
Shadow Bite	3	8.3
Shadowflame	1	2.7

Hoeley Protection 11 casts · sequence

Spell	Casts	Per min
Hammer of the Righteous	3	8.3
Shield of Righteousness	2	5.5
Consecration	2	5.5
Hand of Reckoning	1	2.7
Avenger's Shield	1	2.7
Arcane Torrent	1	2.7
Judgement of Light	1	2.7

Pinhead Frost 9 casts · sequence

Spell	Casts	Per min
Waterbolt	5	13.9
Blizzard	3	8.3
Presence of Magic	1	2.7

Smashpala Retribution 8 casts · sequence

Spell	Casts	Per min
Divine Storm	2	5.5
Crusader Strike	2	5.5
Seal of Command	2	5.5
Judgement of Wisdom	1	2.7
Exorcism	1	2.7

Keernel Restoration 6 casts · sequence

Spell	Casts	Per min
Rejuvenation	5	13.9
Nourish	1	2.7