The PW Kaya, Intangible Slayer has the 3rd ability “Soul Draining” that reads:
“Exile target opposing creature. If that creature has one or more evergreens between Berserker, Lifelink, Deathtouch, Double Strike, First Strike, Flying, Menace, Trample, Unblockable, Vigilance or Prevent Damage - The first Spirit card you control gains each of these evergreens that card has. Otherwise: Create 6 White Spirit tokens.”
However, this doesn’t seem to work with ACQUIRED evergreens.
I used that ability to exile an opposing Olivia, Mobilized for War, with Flying, Haste and Lifelink. My first spirit already had Flying, but not Lifelink, and it did not gain Lifelink after Olivia got exiled.
The PW’s ability description does not state that it only applies the listed evergreens when the exiled creature had them originally, as a card feature.
As such I consider that ability to be bugged.
If, however, it is working as designed, I consider the release notes for that PW to be false advertising, and the in-game ability description faulty.
Either way, this issue demands a “fix”, and I hope the ability gets adjusted, not just its description.