Deck of Lunacy for sure still pops up in lists sometimes, but the lists without it have better win rates. Sites like Vicious Syndicate also suggest lists that don’t run DoL. It can be a frustrating card to lose to, but IMO it doesn’t need any further adjustment. The card will likely get worse as more sets get released as well.
Octo-Bot is a very strong card. I wouldn’t be surprised at all to see it receive a nerf one day. Each class having limited ways to remove it cleanly is kind of the point though. Not sure if I’ll feel this way a month from now, but I’m willing to wait until Rogue is a bigger threat. While additional sets will of course give Rogue more options, chances are more cards will be printed for other classes as well that can handle an early Octo-Bot.
First day of School was a card I was happy to see nerfed. It’s a strange card. I think in past meta’s the card would have been more reasonable, but the current strong pool of 1 drops and additional presence of a turn two +2/+2 was too much. I’d like to see it reverted when it rotates out.