I didn't see anything on this on these forums about this, but I actually stumbled across an interesting quirk to Tao when screwing around with a friend. It started out as an accident but I went to test it later in training mode and notice there was a huge damage modifier for Tao's Distortion Drives when you combo off a taunt (and only a taunt, other attacks added and proration occured--reducing the damage, but it was still higher then normal). I'm not sure why that is but I went ahead and scrawled the numbers down tests I did on Rachel & Jin standing right next to them for the full effect.
I know this may be all well and useless but I thought it was a interesting mechanic--or bug.
Hexaedge
3042 5 Hits
3742 7 Hits (Off a Taunt)
Hexaedge /w Almost Becoming Two
4225 10 Hits
6953 14 Hits (Off a Taunt) This one actually floored me, seeing 70% of someones Life Bar go away in a instant is fun.
Brutal Kitty Fest /w Almost Becoming Two
Note: I know Almost Becoming Two does nothing for this Distortion Drive but it actually made it much easier to combo into off a taunt.
2957 41 Hits
4380 45 Hits (Off a Taunt)
Great guides btw, it's helped newbies like me a great deal.