So scourge illusionist’s effect is supposed to put a 4/4 copy of a deathrattle minion from your deck into your hand that costs 4 less. Instead it put a 0 cost necrium blade into my hand with 4/2 stats.
Since it says minion instead of card this is definitely a bug. I think it’s really interesting that the card actually changed the stats, though. Humorously, I think it should’ve changed it to a 4/4 instead of a 4/2.