Arcane Guardian

(In the planner)

The planner shows this arcane on a build but does not add it to the stats. Its effect only applies under a condition, so a stat sheet that added it in would be showing you a number the game gives you in one situation and not the rest. The same rule governs mods whose values have not been checked: a figure this site prints is a figure it can defend, and one it cannot defend is left out rather than guessed at.

Warframe builds have two arcane slots, and this one fits either.

(Where it comes from)

1. Eidolon Gantulyst Uncommon 15.68%
2. Eidolon Gantulyst (Capture) Uncommon 11.92%
3. Neptune/Mammon's Prospect (Skirmish) Rotation C Rare 6.9%
4. Veil Proxima/Erato (Skirmish) Rotation C Rare 5.63%
5. The Descendia: Infernum 20 Triple Arcane Rewards Rare 3.7%

Where the same place appears under several reward tables it is listed once, at the best odds it offers — that is the figure a farm can actually achieve. A dash means the source is known but carries no published chance, which is usually a vendor rather than a drop.