I'm curious if this is a glitch in mtg arena or some layers thing I'll not understanding. I have Vulpikeet on the field. Opponent casts Frogify on it which makes my creature a 1/1 with no abilities. I later try to cast Gemrazer via mutate onto Vulpikeet to use the Gemrazer Mutate trigger to remove Frogify. But, the new mutation is still just a 1/1 with no abilities and Frogify remains. I thought creatures could still gain ability after losing them and Gemrazer having later timestamp would help.
That interaction is working as intended.
While it’s true that effects that add and remove abilities apply in timestamp order, mutate doesn’t work by giving abilities and the like, but rather by changing the copiable characteristics of the mutated creature. Since mutate is a copy effect, it applies earlier than Frogify’s effect and so any ability that would be gained by the creature is stripped away by Frogify before it can be relevant.
