This weapon deals primarily Script error: The function "Proc" does not exist. damage.
Advantages:
Can attack continuously while sprinting without disturbance.
Relatively high attack speed. Faster normal attack than Orthos.
Long range attacks with a wide radius, even wider than the regular Orthos.
Large jump attack AoE that knocks down enemies.
Stance slot has Script error: The function "Pol" does not exist. polarity, matches Shimmering Blight stance.
Disadvantages:
When swinging you will be reduced to a walking pace, starting on the third combo animation.
Normal attacks have awkwardly placed swing hitboxes which vary with each swing animation, making it more difficult to hit enemies.
Doesn't have momentum (stagger resistance) like other heavy weapons.
Very high stamina consumption.
Weapon Loadouts
Main article: Category:Orthos Prime Build
See the user build section for builds using this weapon.
Notes
The Orthos Prime's Script error: The function "Pol" does not exist. polarity for its Stance slot makes it ideal for slotting in Shimmering Blight immediately. While the Orthos Prime can also use Bleeding Willow, its Script error: The function "Pol" does not exist. polarity will reduce the number of its bonus mod capacity, unless changed using Forma.
The Orthos Prime (and its normal counterpart the Orthos) has a unique equipped normal attack animation where it performs thrusting and stabbing attacks against an enemy. This attack is completely replaced upon equipping either of the polearm Stance mods.
Trivia
This weapon used to have the same stats as normal Orthos. It was buffed in Update 9.5.2.
Note that the end-blades are not mirrors of each other and seem to have shapes that could fit together
In real life, Rubidium is an alkali metal element that is very soft, ductile and silvery-white in color.
It is not good for a blade as it's not hard enough to scratch other materials.(Brinell hardness of 0.216MPa, thousands of times worse than iron, which has 490MPa).
Being ductile, it is also easy to bend, so it won't keep an edge (or any shape for that matter) when striking an object.
Rubidium, as with most alkali metal (like Sodium), oxidizes violently when coming into contact with water, sufficient to produce a small explosion.
It can spontaneously combust in air, so it is usually stored in sealed containers with an inert liquid (mineral oil) as a buffer.
Despite the Orthos Prime's description, Rubidium is actually denser than Iron, by ~53%.
Rubidium has useful properties in laser science, atomic clocks, nuclear physics research, and solar panels. This can lead to speculation that the "rubidium" in the Orthos blade is either some kind of engineered material or it is used to focus/channel something.
It is also possible that Rubidium in the universe of Warframe is based on Rubedo, and therefore a different chemical or material altogether.
Media
Orthos Prime
orthos prime jump attack
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Warframe 10 ♠ Corrupted Orthos Prime
Warframe Let's Build Orthos Prime (Melee 2.0)
Warframe Orthos Prime Pro builds 2 Forma Update 13.3.0-0