Haggar's barrel is hilarious. It has more invincibility if you hold it out and do nothing. If you press a direction after someone breaks the barrel in his hands, iframes ends early. Basically if someone is punching that barrel on the ground, you can safely level 3 them in the face. The normal command grab takes some timing if something is right on top of you like a meaty fireball, but if someone is trying to poke it with a normal on the ground, you usually can do it.
Also the last few frames of time surge is super cancellable, and the i frames are still present up until you do the super. So what I tested is iron man doing reality stone and mashing jab after. I go through the reality stone and see what supers I can get off on him without getting jabbed. Basically command grab supers will avoid the reality stone and grab iron man out of trying to jab you out of the end of the time surge. Invincible lvl3s work like Ryu's Shin Shoryuken, but Chun's has an issue is that she lands it but in the middle of that second set of kicks before it gets to the animation part, the reality stone can come back and hit her before it gets to that point. Thor is CRAZY with time stone. Basically if you are on the ground and you see him time stone with meter, jump! Because you can't interrupt the attempt, and it does 4450 damage for 1 bar. For reference Haggar's lvl3 only does 5500 for 3 bars for some reason.
Can you guys give me a list of other lvl1 animation supers, grabs, or stuff with iframes? I want to test some more stuff.
edit: I'm gonna test against stalking flare in about an hour after I get some errands out of the way.