unduitably phoenix
on atk side phoenix ult is 6 orbs and u just farm 2 every round cuz the orbs r so attacker sided
then u get ult every other round
same works for fracture
duelist*
You can say what you want about their respective flashes and molly, but the real comparison is between kayo knife and phoenix wall. Who knows, we may see phoenix>kayo after the wall buff, but a 40 second refreshable scan that also suppresses people versus a wall that damages players and your teamates? The knife will generally get you more value (especially on defense), and since you will already have smokes on your team or your throwing.
Are you suggesting phoenix solo duelist? Because unless ou want to only entry on rounds you have phoenix ult it's not gonna go well. Even with the ult, if you get shut down you have no entry. Having a Jett as your main duelist is necessary on abyss. I could see you running a phoenix as a secondary duelist, but I'd argue kayo is better in that regard
your 2 orbs every round thing gets figured out in 2 rounds and you get countered after that + its a big ass map its gonna take ages from orb to orb if they even remotely contest anything and you gotta clear things, then you gotta commit to the place where you take the second orb or run the timer even lower with 0 map control since youve been running in spawn the whole round