>>95668302015 was the line, bled into 2016 a good amount too. Only reason I even remember at this point is I remember buying Scorponok the week I moved in with my gf, now wife, and she bought an Underbite when we were at the store.
Scorponok has some of the coolest legs I've ever seen, and somehow has a better tail than KD's. Weird and interesting claw transformation too, they essentially slide down off of his shoulders to sit on his hands. Quillfire is also just objectively good, I don't care about his back kibble or his hollow legs, his head is perfect.