According to this: Black Oozes are supposed to draw one and a half cards per round, but they actually drew 3. This was in Viscous Tombs, first battle.
It scales dependent on how many of them are alive - it's 1.5 per individual (6 for a full group). Was it was only one alive at draw? If you're saying that single one drew 3 (instead of 1 and then 2 next round), then something's off. Just checking!
Yes, only one alive when I took that screenshot, and at the beginning of the next round he was holding 5 cards, presumably after discarding one.
