I am currently playing some Onyx Jaguar Kaleos decks that don’t run the Fox nor Vortex and these changes personally don’t affect me.
A slight increase, if any. It’s not like the patch made Kaleos better or anything, just Reva is probably not going to be so overly dominant. I personally believe a lot of Kaleos decks that are AMAZING go under the radar (though one of them is probably now defunct due to Saberspine and Spelljammer changes, R.I.P. Aggro Zoohai) so maybe some of those will come out of the woodwork soon.