By economic I don't mean the all-in makes you get more resources or something, just an all-in that doesn't mean GG if you don't outright kill. Also an all-in that's not mega obvious like the 1 base ling bust or the 7rr. I'm in Diamond so I have the ability to execute builds decently. I really like the 3 base Soulkey Roach Bust. First of all it's not obvious because you get a third, and second.. you have a third! so you can just drone during your attack, or whatever.

Just name the all-in, if you have one, and the matchup.

Cheers!

EDIT: The soulkey 3 base bust if you want it:

hatch, gas, pool opening

• pull 2 drones out of gas after speed

• take 3rd at around 6 mins (when speed finishes)

• once you have 100 gas (from that one worker you left in the geyser) add another gas, and put 2 workers back into the first

• build a roach warren

• bling nest

• ~8 roaches ling rally morph banes outside base = GG

I've had massive success with this build.