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.

Yildin Protection 31 casts · sequence

Spell	Casts	Per min
Cleave	6	9.7
Shield Slam	6	9.7
Revenge	5	8.1
Devastate	5	8.1
Heroic Strike	4	6.5
Thunder Clap	3	4.8
Shockwave	1	1.6
Charge	1	1.6

Spoondk Frost 18 casts · sequence

Spell	Casts	Per min
Frost Strike	7	11.4
Pestilence	4	6.5
Obliterate	3	4.8
Howling Blast	2	3.2
Death and Decay	1	1.6
Plague Strike	1	1.6

Smart Discipline 11 casts · sequence

Spell	Casts	Per min
Renew	4	6.5
Power Word: Shield	4	6.5
Prayer of Mending	2	3.2
Dispel Magic	1	1.6

Dumb Arms 10 casts · sequence

Spell	Casts	Per min
Mortal Strike	2	3.2
Rend	2	3.2
Cleave	1	1.6
Thunder Clap	1	1.6
Heroic Strike	1	1.6
Bladestorm	1	1.6
Sweeping Strikes	1	1.6
Overpower	1	1.6