I can look to expand that a bit! We're a d10 opposed roll system with grid-based combat. Our big unique points are that we have a balanced Technique creation system where you can customize your own battle abilities, and we have an active roleplay system where players are encouraged to shout attack names and dramatically monologue to receive rewards from the GM which can be spent to boost rolls.
On the non-combat (or Challenge) side, we use a Meter system where players still act on initiative and describe their actions, justifying a specific stat to use while doing so. Successes can push the meter higher and failures can push it lower, with the success of scenes based on the end result of meters. This system has a lot of flexibility where the GM can set time limits or other conditions as needed to represent more complicated scenarios.