Jan 5, 2023, 11:4801/05/23
Points based. You can earn, albeit al ton of points, from the expected "buy resources" types of in game offers to adding a few points at a time by way of logging in and staying in. Of course tornaments and special events look prime as well. Nothing on the horizon indicates this will be a fusion unless they hybrid a mini fusion into shards or something.
For now, don't expect to see this champion regularly for a while.