#9 When you look at the already revealed cards+what we know will be in here (eg, the Tamers X Antibody stuff they announced and stuff like the mentioned Meramon card Reina had) we can essentially say we already know what every card in here will be so reveal season wont bring up much exciting other than what Sunarizamon's evos will look like, etc, as every other spot is pretty much already accounted for
More importantly, everything else that triggers on the end step also goes again
Alternatively, you could use a card like Illusionists Bracers to copy the 10,000 Needles ability onto another creature, giving your opponent 20,000 needles to try to avoid instead
They can trade off with something bigger, and with a quick re-equip you don't actually lose any power on the board
Deck boxes are great for organizing ready-to-play decks or color-coded themes