What Overclock completely changed the game for you?

Just after hitting the 200 hour mark, I finally unlocked the one OC I've been hunting for since my first promotion, Special Powder

I'm sure I don't need to make a case, just holy hell, I knew what I was getting into and still had no idea it was so fucking potent. The speed! The quick changes in directions! The airtime! The synergy between SP and GH makes it so much easier to save your own ass

Traversal already felt so fresh and expressive with the hook + vaulting movement, but Special Powder makes me feel like I'm tapping into the TF2 rocket jump muscle memory, so fast and fun. Very excited for the similar Grenade Launcher Overclock

Anyway, Special Powder changed the game for me like no other OC. How bout yall?