>>718839327
>I only have two 3* Umas
The strongest PvP Uma (by far) is 1* Gold Ship, so that's not the issue.
>I certainly don't feel like I'm getting much stronger.
You farm sparks, for that 0.0001% chance of getting something *other* than a Guts spark.
Then you farm run of the same character with the same deck, for that 0.0001% of getting one run where every turn has Rainbow stacks AND you don't get twelve "Mood Down" event AND you don't get body blocked 4 time in a row on a random ass mandatory dirt track.

Yes that's the game's actual main gameplay loop.
Yes it's shit.
Yes the honeymoon is coming to an end.
The only one who stick to the game will be terminal weebs, and the kind of people who find Pokémon IV farming fun.