Here's the set up: You have 4 weapon slots, and 1 slot each for a shield, helmet and armor. You have to play everything in Spiral Knights with only this gear, although you can have a costume. Also, you can choose to put 1 unique variant on each item of gear. OK, what's it gonna be and why?
4 weapons:
1. Combuster, with charge time reduction: very high. This was "My Baby" even before the rebuff. Now I go through Jelly King levels like Godzilla through downtown Tokyo.
2. Argent Peacemaker, with attack speed increase: very high. It's a very cool and effective weapon with great range and the ability to shoot through mist screens. It's gonna get rebuffed soon so that it's no longer split elemental/pierce but rather strictly elemental with bonus damage against Undead.
3. Dark Briar Barrage, with CTR: VH, of course. This bomb makes even stratum 6 Wolver Dens a walk in the park. It's also a big help in Deconstruction Zones, Danger Rooms, and Arenas.
4. This fourth one is up for grabs, but in the end, I'm a swordsman. Divine Avenger has that great distance attack and powerful strokes, but I've already got an elemental sword, so it'd probably be better to have a shadow sword or a pierce one, and I'm gonna go with pierce: Final Flourish, ASI: VH.
Helmet: Shock, fire, freeze, and other monster and environmental damage is all around us, so I need a good elemental helmet. Vog Cub Cap with Maximum Normal damage defense.
Armor: There's a lot of pierce damage out there, from wolvers to jellies to polyps, to the occasional run in with a thorn bush or spike, so I need some pierce defense. Zombies are fairly easy to dodge, but ghostcats will get you from time to time, and devilites and reavers are the worst, so some shadow defense seems indispensable. I'm going with Radiant Silvermail for in's pierce/shadow defense with Maximum Shadow damage defense.
(Good thing I have a costume, cuz those two are a hideous combination.)
Shield: Grey Owlite for its maximum fire and shock resistance, with Maximum Normal damage defense. This was a tough choice, but ya gotta choose something.
Weapons:
1. Glacius, UV ctr vh.
2. Barbarous Thorn Blade, UV ctr vh.
3. Valiance, UV asi vh.
4. Electron Vortex, UV ctr vh.
Helm: Divine Veil, UV normal max.
Armor: Skolver Coat, UV normal max.
Shield: Grey Owlite Shield.
Don't really have time to say why, it's a pretty good all around set.