I actually did some testing in Dread Wastes. It is currently very hard to find equippable 2hand agility items. The only one right now is Stormherald. One of the new 5.3 craftable blacksmith items.
All other items are polearms/staves which are currently not wearable by Titans Grip.
Funny enough I tested in Dread Wastes and I had that one NPC buff. It triggers a 50k damage spell every now and then.
One problem with throw is the min-range though. Nevertheless...it was no problem taking down 1mil hp mobs with some effort.
So doing some low level stuff for the lols should be quite fun.
Of course you use your other throw abilities aswell. (Thunder Hammer, Heroic Throw)
Still need to test a full agility set and the how it affects the throw damage.
With the new patch I'm not sure what happens if we exploit druid tank items for the dodge to crit conversion with riposte. But probably we are best to go straight for dps-leather/mail.
To bad that haste does not affect the throw cast speed.
There are some cool looking frost spears that you can buy north of Dalaran. Would be a perfect transmogg.
/cast [@mouseover] Throw; Throw