Ability:Aid

 Power sources: 💪Martial

 Delivery: 🤲Self✳️Manifest

 Target: 👤Creature

 Execution time: 0️⃣Free reaction( ↩️Reactive )

 Trigger: Another creature is about to use an action that requires a tradecraft check, attack roll, or some other check.

 Duration: Instant.

 Range: No limit.

 Requirements: You have already use Prepare Aid on the triggering creature or the GM rules that this is unnecessary.

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You try to help the triggering creature with the task, this typically grants the creature advantage with whatever they were attempting, but the GM may rule otherwise.