MTG's Wurms tend to be gigantic worm-beasts that tend to bring to mind creatures from Dune or Tremors (just like the iconic Craw Wurm from Alpha), but this guy is very clearly a dragon sleeping in the desert
Now were getting into territory where someone unfamiliar with Magic might start to get confused
3 Athreos, God Of Passage Prevent Creatures From Dying Legendary Enchantment Creature Cost: 1 Generic, 1 White, and 1 Black Mana Athreos, God of Passage is yet another first for this list, being the first of the "God" type cards
Incubator tokens are predefined, like food or treasure, meaning that they have an ability baked into them in this case, all incubator tokens have the ability 2: Transform this artifact. The flip side of Incubator tokens are 0/0 Phyrexian artifact creatures, so this mechanic is effectively a way to give you token creatures of varying sizes for an extra 2 mana that you can pay later