Murder at Castle Nathria Cards List & Guide
Combo: Add a copy ofeach card you've playedthis turn to your hand.
To be clear, the effect does not include the Parrot Mascot itself—just the cards you’ve played this turn before playing the Parrot.
To be even more clear, if you use cards like shadowstep or even other parrot mascots, to play this many times a turn, it will still never give you back a mascot. It seems to just be blacklisted from its own effect.