Hey there! This is a bug related to Sigma’s Stadium ability Trinisphere. If you cancel the animation of Sigma’s primary fire with any ability or melee between the first two spheres, the bug makes it so Sigma will immediately shoot an extra 3 hyperspheres upon that animation’s completion (Four shots back-to-back.) While you’re shooting the “extra” hyperspheres, the game locks you into your primary fire. However, because you can cancel “primary fire” with melee, you can keep melee’ing back-to-back with no cd while the spheres are being shot. This can be exploited to do more damage than usual (albeit locking you out of your abilities during the combo) by starting your primary fire, melee’ing between the first two spheres, and melee’ing again with no delay- This makes him have higher DPS up close. At range, it doesn’t increase DPS overall, but gives him more burst potential than he should have.