There are a few glyphs in the game that require a specific condition to be met before they get their full effect. For example Riposte, Opportunity Strike, and Aetheric Feedback. Currently there is nothing that lets you know when this effect can trigger however, which makes these very difficult to use, and depend on trying to read combat logs or watching the damage numbers very closely, which is distracting and pulls concentration away from managing your hot bar and generally paying attention to the fight. I think there should be a UI cue in the game for abilities that have effects that only activate when a specific condition is met. For example, when a glyph of Aetheric Feedback is on your bar and you land a crit there could be a subtle audio cue and the edge of the glyph lights up for as long as the synergy is available. Once the time window has passed the edge of the glyph stops glowing, so you don't have to guess if you're still in the window or not when you were in the middle of casting something else when it went off. The same mechanic would be used for similar abilities like Riposte or Opportunity Strike. This would heavily improve UI feedback to the user, making these abilities a lot more fun and rewarding to use, rather than making it a frustrating experience where you have to pay constant attention to very spammy combat logs or damage floaters trying to catch a glimpse of what you need for these abilities to work.