SFS Standard Meditative Analysis [one-action] Feat 1

Source Player Core pg. 143
You briefly meditate on the nature of your foe and their role in the wider cosmos. Attempt a check to Recall Knowledge about a creature. On a success, your next Strike with a solar weapon against the target this round additionally gains a +1 circumstance bonus. If your Strike hits, you can choose which attunement benefit you gain for that strike. The subject of your check is temporarily immune to Meditative Analysis for 1 day.

Traits

Cycle:Actions with the cycle trait change your current stellar attunement to its opposite state. When you take such an action with this trait, you benefit from the additional effect of your current attunement if the action had the attuned trait, but once you complete the action, your attunement changes to its counterpart (so graviton-attuned if you were photonattuned before taking the action, or vice versa).