Are you hunting for Syndicate Medallions, Secret Caches, Ayatan Sculptures, or just someone who likes breaking stuff and picking up loot? Then this is the build for you! A Xaku-flavored variation of a classic build, this build focuses on speed, loot radar, and breakable destruction range while also putting out enough DPS to quickly kill almost anything on the regular Star Chart. It's designed for missions where you want to locate certain interactable items that show up on Loot Radar. This build is also totally viable for general play while retaining its break-everything-nearby power if you swap out Thief's Wit and/or [Rush] for more Ability Strength.

I've been loving [Xaku] and playing around with different builds, and I noticed a few things: [Xaku]'s ult grants really strong passive buffs that don't scale with Ability Strength, [Xaku]'s DPS scales really well with Ability Range, [Xaku]'s ult destroys breakables, and the base range of Xaku's ult is insane. With these powers combined, I present Xaku, Bane of Breakables!

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-Your first and third skills are generally not used with this build. Helminth whichever one you like less for Molt. Molt is a great way to drop aggro, but it's also a multiplicative move speed modifier. Even with only 40% AS it's a 20% buff. It's a very short boost though, so if you're running low on energy this is the skill to stop using.

-Grasp of [Lohk] is where our DPS comes from. Even with 40% AS they do decent damage, and because of our massive AR we can summon 14 of them. On most starchart content enemies will immediately die when they come within range of you.

-The Vast Untime is the crux of this build. If you don't know how [Xaku] works, when they cast their ult 2 things happen: they release a spherical pulse of void damage that debuffs enemies and they gain a buff with a base duration of 25s that gives a 20% multiplicative move speed bonus, increases the attack dodge chance and AoE damage reduction from their passive to 75%, and pauses the duration of all of their other skills. (Note: this does NOT apply to Helminthed skills.) You cannot recast your ult while you have this buff, but if you use the skill while you do, the buff is immediately removed so the skill can be recast.

As far as gear, this build should run a companion with Animal Instinct/[Primed Animal Instinct]. I like to use [Oxylus] with [Scan Matter], which despite its description does not actually reveal containers within 60m, it temporarily increases your total loot radar range by 60m. Throwing [Botanist] on as well as a great way to passively collect plants.

Arcane Energize and Arcane Grace are just all around solid Arcanes, but you can use whatever you want.

This build is pretty simple to play. You want your ult to be up at all times unless you're in the middle of recasting it. While your ult is up, Grasp of [Lohk]'s duration will be paused, so it only ever decreases by ~0.6s at a time during the casting animation whenever you drop and recast The Vast Untime. So turn on your ult, summon 14 weapons from nearby enemies, and those are just going to follow you around until the end of the mission killing anything nearby. If you do lose them by not noticing your ult expired or falling off a cliff or whatever, don't fret - with 160% Ability Efficiency it's quick and cheap to resummon them. But most of the time you can just ignore them while they do their thing.
Meanwhile, our job is to use The Vast Untime. With the amount of Ability Range on this build, TVU has a whopping 58.75m range. In addition to all the other cool stuff [Xaku]'s ult does, any breakables within that range will be broken, no line of sight required. The reason we stack Efficiency, Energy pool, and [Preparation] on this build and don't care much about duration is because we'll be regularly recasting your ult before the duration runs out. Whenever you're in an area where unbroken breakables are showing up on your loot radar, drop it and recast it to blow them all up. Rinse and repeat. With this setup you will generally have enough energy for the entire mission even if you don't find more. That's it. That's all there is to it. Have fun causing collateral damage!

This is a 3-forma version of the build, but you can easily bring it down to 0 formas if you swap the prime mods for the normal versions and drop [Rush]. If you go that route, my recommendation to replace Rush is a level 3 Augur Reach.

Here are a few pictures to illustrate how the build functions

-It's hard to demonstrate breakable destruction range with screenshots because most of them drop items that also show up on loot radar. But this is the range at which you can break things:

-This shows your normal loot radar range (using a companion with a maxed [Primed Animal Instinct]):

-This shows your loot radar range with [Oxylus]'s [Scan Matter] in effect: