Power Synergy Idea

I was thinking about power synergies being something fun to add to the game. For example if you use a melee power within 2 seconds after you using a PBoE power with a damage component you, or maybe the team, subsequently get a 1% ToHit buff to all your/their powers for 5 seconds. The synergies would have to be very specific to prevent over power and my numbers are just pulled out of a hat. We have synergies in a very limited and not exciting way with Defiance, Gauntlet, etc. Real power synergies add a much more interesting dimension. The possibilites for different synergies are quite expansive.

It's not a bad idea, but the concept is already implemented in the game.

The developers use synergies as a carrot on several archtypes and powers, two of which you mentioned, those being Defiance and Gauntlet. I somewhat doubt that the developers are ever going to back-port new synergy technologies to the existing powersets... due to the whole cottage rule thing that's going on. Probably the biggest synergy change upgrade players can look forward to is a change on Defender's Negligence.

The alternative future can be found in Dual-Blades. The dual-blades set, on it's on, is generally weaker per attack compared to other melee sets. Dual-Blades makes up it's lack of power with the various combo effects. You need to pull off combo's in a certain amount of time for Dual-Blades to put down the power or effects that other sets can do without even trying. We'll probably see more of those types of combo-specific sets turn up rather than a micro-buff synergy effect system.

Due to the balance issues, and the issues of making each Archtype Unique... I doubt we'll ever see work on a global synergy system.

I'm not seeing the logic of the system. Why would using a melee attack after a PBAoE give a to-hit buff?

And why would a 1% tohit buff for 5 seconds be in any way noticeable, much less useful?