>>87839061I think for attributing colors they have to decide between following the holo's color scheme and the gameplay they plan for her.
For example maybe they wanted AZKi and Pekora to be huge oneshot machines that you need to build up, so green makes the most sense here.
As for purple Ollie, we still don't know what the color is about, but if it's indeed about the archive then putting the zombie here makes the most sense. I could see Ollie with the ability to be played from the archive.
Although red would make sense too. Maybe the red-purple distinction is that red wants to discard cards as a downside while purple cards want to be in the discard for an upside?
Would also explain why Okayu isn't purple. If they wanted to translate the trickster-type character then being able to mess with your opponent's bench makes the most sense, so blue.
In fact it would be interesting to have an attacker that can ONLY hit ther bench, not the active. So against that holo you'd want to put the holos you want to protect in the active/collab spot instead of the backrow. That would make for a fun twist.