Lion Sash is a Scavenging Ooze that can be found off Stoneforge Mystic, grows for exiling not just creatures, but permanents , and can dodge removal by being equipped to a creature
Black can feed the death requirement for morbid cards, either by destroying your opponent's creatures or by sacrificing your own
It allows you to move a Basic Energy card from your discard pile to the Pokemon that Powerglass is attached to, as long as its in the Active Spot
You might feel like you need to prioritize creatures while youre drafting because there are so few good creatures and it might look like your deck has to have them, but it really doesnt, and you should actually be trying to minimize rather than maximize the number of creatures in most of your blue decks
Each Room card is a single card
That was a lot of references that was found