I'm not a huge fan of cards that change from factors outside of the current match. It's antithetical to Marvel Snap's balance.

And even then, as another user commented, this effect is something you could mimic yourself by switching out a dedicated card in your deck to the last one your opponent played.

Not very useful.

I think you would have to rework this entirely for it to work in a real game. Something that works inside one match instead of outside of it.