Naxxramas Cultist 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 18 casts · sequence

Spell	Casts	Per min
Seed of Corruption	7	18.7
Shadow Bite	4	10.6
Life Tap	3	8.0
Life Tap	3	8.0
Shadowflame	1	2.6

Pinhead Frost 10 casts · sequence

Spell	Casts	Per min
Waterbolt	6	16.0
Blizzard	4	10.6

Hoeley Protection 9 casts · sequence

Spell	Casts	Per min
Hand of Reckoning	2	5.3
Hammer of the Righteous	2	5.3
Consecration	2	5.3
Shield of Righteousness	1	2.6
Avenger's Shield	1	2.6
Judgement of Light	1	2.6

Keernel Restoration 5 casts · sequence

Spell	Casts	Per min
Rejuvenation	5	13.3

Smashpala Retribution 4 casts · sequence

Spell	Casts	Per min
Divine Storm	2	5.3
Divine Plea	1	2.6
Judgement of Wisdom	1	2.6