I played a 1-cost copied minion with Dorian and played my pet parrot, but instead of the copied minion, I got a copy of the 1-cost Crimson Clergy I had played before.
Cards with altered stats do not count retroactively
If you have an effect on board tha ttriggers with 1-cost minions being played, it will count
But after that, it doesn’t count anymore because retroactive effects (almost) always check the base stats of the cards