Decided to post here because as far as I'm concerned, Ivy has no tech traps nor combos.
Feel free to TL;DR
You want to condition an opponent into retaliation, most retaliatory attacks are verticals which is great considering Ivy really only has her tech stepping abilities to her resume. Right now I'm going to pretend tracking doesn't exist, but no one's perfect right?
3k and 2k opens up an opponent into either a backstep or a bait, I look at a roughly 15 damage attack as a 30 or so hit mini combo if you can manage to shave life off with two pokes. They won't let a second poke go through without the aforementioned reactions or blocking (Blocking I'd never take advantage of with a throw either)
3k and 2k, followed by 214B, and some guarding, or another 214B if you suppose they'll take advantage of her negative frames after the latter, considering 214b is a horrible move, it has pluses if you use it right.
Speaking of horrible moves, 3B's found a use in spacing out the gap between close range fighting to mid range (So you can escape those Maxis of course) The idea is to constantly throw in 3k and 2k so an opponent doesn't retaliate with a move quicker than those absurdly throwable and step suffering moves (214b/3b) two 3ks is better than a 2k, but a 2k makes an opponent block just a tad bit longer without throwing out anything. You're looking for all the interruptions you can find, while baiting as much quick strikes as possible to spam out 214 etc and such.
Now what some opponents will do, probably out of spite, will block a 2k, and return a 2k right back at you, if you see a pattern, 8_9b is your friend.
I've omitted the use of 4B and BB in my arsenal because it's too slow, I'll play like a square as long as it lets me win.