This is important, because certain subtypes in Magic can interact with each other, either by enhancing each other, creating copies of each other, or acting as prerequisites for certain abilities or spells
Reveal cards from the top of your library until you reveal a nonland permanent card
Curie needs support to be worth running, but the one-two punch of pressure and card draw is worth the scaffolding
On the one hand, it makes artifact creature tokens whenever you cast instants or sorceries, which turns every spell into board presence
Its that kind of value creature that midrange decks like to have in their sideboards against a removal-light opponent
Cayth does not directly synergise with the energy theme, though this is a good time to note that energy is stored as counters on a player and can be increased every time you proliferate