Poisonous Skitterer 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.

Shuvel Affliction 15 casts

Spell	Casts	Per min
Life Tap	3	19.7
Shadow Bite	3	19.7
Seed of Corruption	3	19.7
Life Tap	3	19.7
Shadowflame	1	6.5
Fel Armor	1	6.5
Corruption	1	6.5