Among the frames that ARE available to Taylor, I feel I should compile ones that would have utility in an Endbringer attack, for future reference.
Banshee Prime - Banshee's Sonar exposes weakpoints in the enemy. Damage to these weakpoints are 16-20x more effective. Sonar can be cast repeatedly to open up additional weakpoints, and weakpoints can stack on top of each other to do stupid damage.
As in, so big they can overflow and register as a negative number.
Equinox - A special augment for Equinox buffs one of her debuff abilities. By default, the aura can reduce enemy damage to around 15%. But then the moment that enemy actually hits someone and deal damage, they'll suddenly begin to slow down proportional to the damage, down to 20% normal speed depending on the Equinox build. Actually a more effective slow than Nova, the frame famous for slow fields. Most people just see Equinox's field of pure pain and assume that's all she can do.
Gara - I already spoke about this one. Infinitely stacking glass nukes means she can push that damage as much as she wants, with enough preparation.
Harrow - Invincibility for everyone! And then super crits afterwards to really put on the hurt. Ever since Trinity's invincibility was nerfed to tremendous damage reduction, Harrow stands out more for having true invincibility, shareable with all teammates. All hail the holy church of the red crit, the fabled triple critical.
Limbo - Limbo has access to an alternate dimension overlaid over the normal one. Only void based abilities can do harm across these planes, so a warframe parked in the rift is basically invulnerable. Or, for extra fun, Limbo could attempt to banish the Endbringer to the rift. Not sure if it would work, but if it did the Endbringer is essentially neutralized, as it won't be able to affect the material plane anymore. And warframe abilities can still shoot it.
Mag Prime - The Endbringer bodies are supposed to be made of Aluminium. These are supposed to be non-magnetic, so I doubt the Endbringer has any extraordinary defense against magnetic shenanigans. Especially since Mag doesn't care if something shouldn't be magnetic. She'll magnetize it anyways, and could, if protected properly, gradually tear the Endbringer's shell down to nothing. Limbo would be ideal here, the Endbringer's only defense would be to run away really fast.
Mesa -
Your gun goes 'pew-pew', and my gun goes 'BRRRRRRRRRRRRRRRRT'. Her peacemakers deal a stupid amount of damage, at a stupid speed, and if she pairs it with Corrosive weapons (which erode the effectiveness of armor the more you shoot at it) she could actually begin to melt the Endbringer under sheer force of gun. Also counts as a Warframe ability, which really plays nice with a friendly Limbo.
Nova - Imagine an endbringer coated in Antimatter, and forced to move four times slower than normal. Much easier to deal with, eh? Nova can do that, and more.
Octavia - Return to Sender, motherfucker. Her Mallet is an orb that plays music that harms enemies. And if someone decides to attack it, they'll find the damage returned to them tenfold. Could legitimately put an Endbringer on its ass if it tries too hard to kill it, and it will try because the Mallet has an effect that forces enemies to focus fire on it. And then she uses her Amp, and suddenly the Mallet is hitting 8-9 times harder, on top of the 10x multiplier on returned damage. This is ignoring the ungodly amount of buffs her music gives allies.
Saryn Prime - Spore damage doesn't cap out. If she spores an Endbringer, it's dead. It will take ages to get there, but those spores aren't leaving. They will continue to eat away at it, constantly accelerating, until they get all the way through. One day. If the Saryn can stay alive, that is. Limbo exists, though.
Trinity Prime - 1 button full heals in a radius, plus 75% damage reduction. Used to be actual invincibility, until the devs had a stroke trying to figure out a way to kill a Trinity ever and patched it. Definitely could help keep everyone alive, and in top condition.
