The Shieldbreakers and their subroles in the Team!

Volt/Prime:

Trinity/Prime:

can

Harrow:

Oberon:

First of all I just want to talk about every viable Warframe and his/her tools being used for their individual role. I will include detailed section where I talk about the individual builds and strats below.Let's talk about the roles and a suitable Warframe for each role, starting with the "Shieldbuffer" and most important role/Warframe for Tridolons:His shields add a set amount of electric damage to your amp's damage. After the nerf of Adarza Kavats, Volt's shields became the only currently known external damage buff for an amp.Stacking the shields adds more Damage to the eidolons actual health, stacking up to 6 shields can enable the Void-Strikers to bust a kneecap with their amps saving about 1 second per every bust kneecap. Against the common believe, casting Shock on the shields doesincrease the added damage bonus. I am aware of the different description on Volt's wiki page, The way i described seems to be exclusive for the amp damage against the Eidolon's shields. The usual 50% Electro and 200% Crit damage increases take effect once the shield is down.Volt also has a speed buff which comes in handy incase your DPS-Role uses a Rubico or Vectis to farm combo during the healing phases. Sadly a conventional Eidolon-Hunter build does not go for Power Strengh and the speed bonus is relativley weak.Volt's passive can also stack up to 1000 extra Electric damage, this comes in handy incase the DPS-Role has troubles landing a shot.Volt can also be built towards an extra DPS buff with the "Shock Trooper" augment incase your DPS has a suboptimal weapon.Coming up next are the "Lure-Sitters" these players usually gather 6-7 Lures and keep them alive during the Eidolon-Set. While there are two viable Warframes for this role I will only talk about the more used one for now.As previously mention your job is to gather lures and watch out for them.Trinity is pretty much perfect for this job.Her ultimate ablity "Bless" uses the affinity range, which is 50m and is not effected by mods of any kind. The only way to increase it are the Flares (increase to 200m) and Vazarin Focus node "Mending Unity" (increase by 25m at max rank). Every ally in the affinity range will get a certain Damage Reduction (DR) buff and will be healed to a certain extent, I will talk about the individual stats in the Trinity Build and Strat section.Sadly Trinity's other abilities are highly situational during the hunt.While Energy Vampire (EV)be cast on Vomvalysts it's not very efficient since the build has very minimal range and a high duration stat. Link can be used to damage Vomvs during the first healing phase but it has the same low range problem as EV.Up next are the "Protectors" Warframes here are used to negate the status procs from the energie strikes. This role also has two very viable Warframes and I will again only talk about the more used one for now, while there are some other Warframes that can negate status effects, non of the others has any other real benefit without going out of their way too far.Harrow is often overlooked, even though his role is basically the least important, he still can be very usefull outside of just negating the damage and status procs for the energy Strike.Harrow, like Trinity, almost exclusivly uses his ultamte ability "Covenant".It is mostly used to make the whole team immune to every damage input and every status effect for a short period of time. This preserves the energy every Warframe has, the magnatic proc still steals energy if it hits your Warframe eventhough you are in Operator (OP) mode. It's second usecase is the insane critical strike chance (CC) buff.Last but not least I want to talk about the "Jack of all Trades"Oberon can do almost everything the roles above are used for. He also is the most popular Warframe used to solo the Eidolons.Unlike the other Warframes I talked about sofar, Oberon uses a big part of his toolkit.His first Ability "Smite" has the augment "Smite Infusion" on base stats it grants 100% Radiation Damage for the 40 seconds to every ally you cast it on. This can be used as Substitude for Harrow's CC buff, or Volt's Shock Trooper for that matter.His second ability "Hallowed Ground" is can be used to Damage Vomvalysts and fill lures during the Teralyst's healing phase to full lures much faster, and the second, more common usecase is as substitude for Harrow's Covenant ability during the energy strikes to negate the energy loss on warframes.Oberon's third ability "Renewal" is a substitude for Trinity's Bless, it heals a certain amount of health per second and has an initial healing blast. This ability became viable after the lures for a buff to their health, armor and shields.