Frenzied Bat 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 14 casts · sequence

Spell	Casts	Per min
Cleave	4	26.1
Thunder Clap	2	13.0
Devastate	2	13.0
Heroic Strike	2	13.0
Revenge	1	6.5
Shockwave	1	6.5
Intercept	1	6.5
Charge	1	6.5

Shuvel Affliction 10 casts · sequence

Spell	Casts	Per min
Seed of Corruption	3	19.6
Life Tap	2	13.0
Shadow Bite	2	13.0
Life Tap	2	13.0
Corruption	1	6.5

Spoondk Frost 4 casts · sequence

Spell	Casts	Per min
Frost Strike	1	6.5
Obliterate	1	6.5
Death and Decay	1	6.5
Icy Touch	1	6.5

Dumb Arms 3 casts · sequence

Spell	Casts	Per min
Cleave	2	13.0
Thunder Clap	1	6.5