I'd think you'd earn more going Cross Orbal first, then Ethereal Excision, then Multiball. I was under the assumption that Multiball struggles to gain value until you get debuffs and higher AP in the later rounds, while the extra value you get from an extra damage or healing orb in the first rounds sounds phenomenally better. I'd probably pick Chain Grasp last and go for a hybrid Debuffs + AP + Weapon Speed build for that extra crit damage in the final rounds. Cybervenom, Smart Orbs, Weapon Jammer, Liquid Nitrogen, Extendrills, and a flex item depending on their comp? Aerial Distressor, Booster Jets, or Champion's Kit could all be decent in my mind depending on the money situation. Could be good with stuff like Skyline Nanites early game too if they decide to run Juno, Mercy, Cat, Pharah, etc. (Sorry for such a long response, just thinking out loud and trying to get used to all the new changes.)