Run Rufus second. Without meter, his midscreen damage is pretty piss-poor. Raven builds tons and has a great long and mid-range game.
Hardmode for Rufus mid-screen damage is cl.LK > cr.MK xx HP.Galactic Tornado TAG HP.Windcross > cr.HP SDC cr.HP SDC cl.HP xx LK.Alter Ego
I think it’s two cr.HPs into cl.HP after Windcross juggle, I can never remember. Windcross needs to be hit low. The timing is really finicky. The combo should work, but I’m pretty much just guessing at it from my comfy chair here. If that’s not a combo, I’m sorry. Try GT > Tag Cancel into something like j.HK into cr.HP loops for swag.
Near the corner, with Raven in, always hit-confirm into cr.HP loops and tag cancel into Rufus’ standard f.HP > f.HP > f.HP xx HK.Messiah Kick. Damage should be awesome.
Raven does enough damage alone to not need Rufus in if you’re willing to spend 2 bars of meter, you can hit-confirm into cl.HP/cr.MK xx Windcross > cr.HP SDC cr.HP SDC cl.HP xx Super for about 530 to 620 damage depending on the confirm.
They both do fairly similar damage alone without tag cancels when using meter. For two bars, if you have Rufus in, you’ll want to hit-confirm into EX GT, use a few far.HK, then Tag into Raven to finish the combo.
Generally, for late game comebacks when they have a lifelead and the timer is down, I put Rufus at being the higher threat because of his crossup divekick. Raven has trouble forcing any kind of real mixup outside of Jab/Throw, which is garbage. He wittles, and needs to counteract an opponent’s offense to get his big damage.
Also, Raven builds a lot of meter. If you have two bars, you can Tag Cancel blocked EX Messiah on the very first hit for a good mixup. You may be able to time his overhead (b.MK > MK) to catch a ducking opponent if you time it right.
Anyhow, that’s a breakdown of their synergy, I guess. A lot of the other stuff is fairly specific to both of them. They don’t make use of chains or launchers all that well, which is an awesome way to build meter.