Warframe

Let's make note of some things.

Combined Damage Types

Blast = Heat + Cold = Some AOE
Corrosive = Elec + Toxin = Armor shredding
Gas = Heat + Toxin = Gas cloud DOTs
Magnetic = Cold + Elec = Shield shredding
Radiation = Heat + Elec = Confusion effect
Viral = Cold + Toxin = Boosts HP damage

Relic Cracking Goals

Wisp Prime: Have Neuroptics & Systems, need Chassis and oh yeah the blueprint.
Dethcube Prime: We're missing some relics for that, but. Vaulted
Burston Prime: Need Barrel, have everything else.
Akjagara Prime: Might be vaulted.
Acceltra Prime? I have relics for that. Have blueprint & Receiver, need Barrel and Stock

Frames

Main Roster

Xaku is the anti-Sentient guy but really, an all-around delight. Void damage boost to all attacks for a bit, a "steal yer guns" power, and a "Terminator mode".
- Stole Nyx's mind-control power via the Helminth into the A and B loadouts. First trial run? During The Hex.
Rhino P is obviously a keeper. Made to be tanky, delights in being stompy. But more importantly, 3 equals damage.
Mesa is the gunslinger, and we Helminth'd Xata's Whisper for some weapon damage boost. Plus 50% movement speed during the "nuke" is a godsend.
Caliban is a hybrid, has a baby version of Rhino Stomp but also has pet summons, in addition to giant laser beam.
Titania P can turn into a tiny Archwing complete with high-damage weapon. Awesome. Great for certain MR tests, too.
Ivara P (w/ Dread bow) is our stealth (Spy mission) champion.
Vauban is the Excavation & possibly Defense master with his little zot rollers and the Suck Grenade.

Others

Garuda's... weird? Melee-ish?
Octavia is the rhythm nation. Nice one-two combo with the enemy-seeking rollerball (2) and the AOE damage (1) that stick together if cast close enough. Great enemy distraction technique.

Weapons

Primaries

Amprex - Zot gun, chain lightning. The "StatStick" mod loadout is ridiculously fun.
Tenet Arca Plasmor - Super duper shotgun, we got Impact as the "bonus" damage type.
- MagNeato build:

Galvanized Hell	Primed Tactical Pump	Shell Shock	Frigid Blast	Primary Merciless
Atomic Fallout	Vicious Spread	Galvanized Savvy	Magnetic Strafe	Galvanized Acceleration

Kuva Drakgoon - It's the UT Flak Cannon. It just is. We even have the skin to prove it.
- Main config:

Galvanized Hell	Primed Point Blank	Frigid Blast	Primed Tactical Pump	Primary Merciless
Galvanized Savvy	Magnetic Strafe	Atomic Fallout	Scattering Inferno	Galvanized Acceleration

Hard to pick the favorite bow but we do have Incarnon on the Dread. But there's also the plot bow. Hmm.

Secondaries

Kuva Nukor - The one-handed Amprex we never knew we needed.
Aksomati Prime (sidearm) is a pair of Uzis, basically. Great paired with Amprex which is shorter-ranged.
- BlastCrit build:

Primed Heated Charge	Frostbite	Galvanized Diffusion	Suppress	Secondary Merciless
Lethal Torrent	Hornet Strike	Primed Pistol Gambit	Primed Target Cracker	Steady Hands

Melee

Broken Scepter

Mats

Cryotic means Excavations. Tikal on Earth seems fine, Vauban's self-propelled rolling traps are a BIG help.

Argon Crystal means running missions in the Void. Luckily they drop like candy, so when we need a few, just go do a few Exterminate runs.

Ayatan Treasures

Fill them while in inventory (for some reason Ayatan Treasures is in the Mods menu), then place in Orbiter or sell for Endo.