Tips on where to go from here?

Could I get some advice on where to go from here? All cards are maxed, and have 15 slots right now. Have been in legends for a few weeks, and just got my first keys in the last tournament. Currently planning to save for some more cards slots, but have been dumping all gems into modules for what feels like forever. Any advice or low hanging fruit that I have missed would be appreciated. I would say I'm leaning towards a damage build. Developing CL is what pushed me into legends.

Thanks!