gib

I have a Beam/Regen Sentinel as well, at 50, and I love playing it. I can give some recommendations based on what I've played: You skipped Refractor Beam and I think that's a big mistake. It's the second best AoE attack the set has behind Overcharge. I personally hate Cutting Beam so I never use it and while Piercing Beam is OK, it's just really bad for hitting more than one target because its arc is so small. Sentinels, for better or worse, I feel require heavy damage proc usage to have decent damage output. So you can definitely squeeze out more damage with some slotting adjustments. Related to that is taking an Epic Power Pool, most or all of them have an attack(s) that can hold a lot of damage procs and can become your highest damage dealing attack. Here's my build, it has a good single target rotation and plenty of easily applied AoE to shred groups.

I've gone ahead and moved mine (just the proc) into Overcharge (beam rifle) and honestly it works out pretty well. Hitting 3+ mobs is basically a guaranteed 0 to full opportunity. Performance is probably similar for the other sets in their 90s cd nukes.

I'm trying to determine if this proc is really even worth using, let alone the entire Opportunity Strikes set considering its pretty unimpressive set bonuses. In certain AoE skills the proc seems to get your bar filled faster (by how much I do not know,) which is good, but it has 2 pretty major drawbacks imo: 1. It has single-stat level Recharge time bonus along with the proc, so it absolutely destroys your damage output if you're putting it in a skill relying on damage procs. 2. Once your bar is full and you're in Opportunity mode, it's a dead proc that does nothing. So at the end of the day is it even really worth using? Does it substantially cut down the number of attacks needed to reach Opportunity, or is it just a marginal increase? Hopefully someone who has played more Sentinel than me has already come to a conclusion on this.

I like it. I think Regen is the perfect yoyo set. You watch that green bar go down, then press a button and it comes back up. You faceplant on the floor, then pop back up. Having the best healing and the best regen/slows/end resistances fit it well.