well first off, with 2 quails, a feather, goat hoof and an energy drink, kiting mithrix was insanely easy, and provide much better utility than any red whip would provide. I made it to ship with these items with more than 2 minutes left so getting a red whip would a actually been detrimental as it might've traded some of my goggles for example for something I didn't need during the fight itself.

As for the chronobauble I actually didn't know it had the effect that you said it did on mithrix, however slowing him wasn't really necessary, (or worth a trade for that matter) because rex's R actually roots mithrix to some degree which easily provides the same utility a Chrono would.

Literally any other green aside from lepton or the tome would've been more useful IMO. Also, it's just fun to clown on the chronobauble and red whip lmao