Maggot 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.

Gameslock Affliction 8 casts · sequence

Spell	Casts	Per min
Life Tap	4	7.5
Life Tap	3	5.6
Life Tap	1	1.8

Treestick Restoration 3 casts · sequence

Spell	Casts	Per min
Abolish Poison	2	3.7
Shadowmeld	1	1.8

Kopm Survival 2 casts · sequence

Spell	Casts	Per min
Aspect of the Viper	1	1.8
Cower	1	1.8