the once and future Spangles

[Concillian]

The combat log listed lines like "You hit dragonkin for 111"
"Dragonkin is afflicted with rend"

And autoattack remained off.
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This was not my experience.

Try autoattacking with a sufficiently slow weapon (big red should suffice). in-between autoattacks, do a rend.

My normal pattern is to charge and immediately MS (improved charge gives enough rage on a hit to make this possible). Doing so against some mobs in Silithus tonight I'd get a log that looked somewhat like:

whatever the charge message is
You hit Dredge Crusher for xxx
Your mortal strike hits Dredge Crusher for xxx
Dredge Crusher is afflicted by Mortal Strike
Dredge Crusher hits you for xx
Dredge Crusher is afflicted by Rend
Dredge Crusher hits you for xx
You hit Dredge Crusher for xxx

Mob attack speed is generally 2.0 secs. So he can fit 2 attacks in-between swings with my 3.5 speed weapon. Doing it directly after charge guarantees it (charge stun + autoattack, 1.0 seconds pass, mob hits me, 3.0 seconds seconds pass, mob hits me, 3.5 seconds pass, I hit mob). Try this and you will see that rend does not have an associated hit or any white damage. Rend is purely yellow damage and the first bit of damage happens after a few seconds (first tick)