Guardian

Trigger and effect

Guardian activates when its owner's shield runs out. The listed boost rises with rank: 58% at rank 0, 83% at rank 3, and 100% at rank 5. Its description does not specify a duration, cooldown, or other trigger condition, so those should not be assumed. It is a standard Robotic mod with Penjaga polarity, base drain 2, and maximum rank 5.

Rank and capacity

The listed fusion costs scale by rank. The first step, rank 0 to 1, costs 10 Endo and 483 Credits; rank 2 to 3 costs 40 Endo and 1,932 Credits; and rank 4 to 5 costs 160 Endo and 7,728 Credits. Rank 3 already lists an 83% boost, while the final two ranks increase that to 100%. Since Guardian has base drain 2 and Penjaga polarity, consider the higher ranks against the capacity available for the sentinel's other robotic mods.

Choosing among robotic effects

The listed alternatives do different jobs. Sanctuary creates a shield around the player while reviving fallen allies; Anti-Grav Array increases the owner's jump height; and Coolant Leak releases a radial Cold blast when multiple enemies are nearby, with a 10-second cooldown. These are not replacements for Guardian's shield-depletion trigger. Choose among them according to whether the desired benefit is revive protection, mobility, crowd control, or a shield boost for the mod's owner.

Acquisition

The listed sources are Nox, Orokin Drone, and Orokin Spectator.

Limitations and tradeoffs

• Guardian only triggers when the owner's shield runs out; it is not described as a continuously active shield bonus.
• Higher ranks increase the listed boost but require progressively greater fusion costs.