Death Knight Cavalier 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.

Unholysux Unholy 19 casts · sequence

Spell	Casts	Per min
Claw	6	15.4
Death Coil	3	7.7
Plague Strike	2	5.1
Icy Touch	2	5.1
Ghoul Frenzy	1	2.5
Horn of Winter	1	2.5
Pestilence	1	2.5
Blood Strike	1	2.5
Bone Shield	1	2.5
Mind Freeze	1	2.5

Laak Protection 15 casts · sequence

Spell	Casts	Per min
Cleave	5	12.8
Revenge	3	7.7
Shield Slam	3	7.7
Devastate	2	5.1
Shockwave	1	2.5
Concussion Blow	1	2.5

Archtwo Frost 14 casts · sequence

Spell	Casts	Per min
Waterbolt	6	15.4
Frostbolt	5	12.8
Frostfire Bolt	2	5.1
Ice Barrier	1	2.5

Ntell Balance 9 casts · sequence

Spell	Casts	Per min
Starfire	5	12.8
Wrath	3	7.7
Insect Swarm	1	2.5

Primei Restoration 9 casts · sequence

Spell	Casts	Per min
Call of the Elements	1	2.5
Fire Nova	1	2.5
Magma Totem	1	2.5
Water Shield	1	2.5
Lesser Healing Wave	1	2.5
Flame Shock	1	2.5
Totemic Recall	1	2.5
Purge	1	2.5
Dispel Magic	1	2.5