Smack Studio / Chrome Dino
Chrome Dino is a high speed rushdown combo character... or at least, that's what it wants to be. At the start of the match, Chrome Dino has the worst speed in the game and can have trouble even landing a single jab. With every level of its ultra, Next Level, it becomes faster in both frame data and movement. It also has significantly improved ultra generation to help with this, so even the first ultra can be gained fairly easily.
Once at max speed, Chrome Dino becomes an unstoppable demon with high damage, great combos, and uncontrollable speed to completely steamroll the competition. It also gains access to Sands of Time, a high power ultra that can be used way more than other characters.
The main struggle with Chrome Dino is really just the journey to high speed levels. At the start, the best stratey is often just to shield and fish for jabs while letting ultra automatically charge. Luckily Chrome Dino has Cactus to dissuade zoning and force an approach, but it is still quite helpless early on.