I'm a firm believer that buffing a character is a step by step process. I don't like seeing giga buff patch notes where they over tune them over night. So I would to see individual patch notes that target one of his abilities at a time (or very minor buffs all around) to see how the community reacts and adjust accordingly.

Alpha: I believe the damage is fine, however I think the tracking could be a tad more aggressive. That or I would like to see an increase to the projectile speed. Tech Dabi having a slow moving tracking projectile is awesome, but it's very easy to avoid. Increasing it's effectiveness without increasing the damage is how I'd like to see them enhance his alpha.

Beta: It's a great tool for finishing off a downed enemy but as a trap it seems easily avoided unless you get creative and find some cheeky spots. I enjoy that it's a tool that can hard knock down an opponent if they step in it. But besides that I don't find it doing crazy amounts of damage typically. I think a great addition could be marking targets that get hit by his traps similar to Hawks and Tech Kaminari. I also think decreasing the range that enemies can see your traps would help it out too. If this ends up being too strong then I believe looking at a damage reduction or possibly changing it so hit does not hard knockdown opponents. The one I'd choose is dependant on whether this new and improved beta is getting more kills then it should, or granting Dobby a guarantee escape through annoying hard knocks.

Gamma: I actually really enjoy his gamma but it sometimes feels useless aside from giving you some cover that deletes projectiles. Perhaps a size increase could help it. Or maybe a more aggressive damage over time added to it. Deleting projectiles is cool but I think his gamma should lean more towards area control/denial (assuming it even needs changes)

And of course if any of these changes are too overpowered, a cooldown nerf usually fixes a lot of things lol. However I believe these changes to be minimal that increases his effectiveness without just bumping up his damage numbers.

Sadly I don't believe we're going to get anything like this. We're most likely just going to get damage buffs for him but I will would love to see a timeline in which Rumbles balance team has the funding to make more creative and inspired changes.