Wizards didnt show off any of the other cycles, but they did display the new Liliana, Waker of the Dead, whose pose is a callback to her card in Magic Origins, Liliana, Heretical Healer, before she sparked and became a Planeswalker
If there is no power and toughness indicated, it simply means the Spacecraft will have the abilities listed in that part of the text box, but it won't become an artifact creature
No player may take any actions between the time you create the Assassin token and the time Headsplitter becomes attached to it
If you do, at the beginning of the first upkeep, create a 1/1 red Phyrexian Goblin creature token with haste
This can ramp your mana, and unlike a lot of mana dorks it can also trade with anything, making it's body virtually always relevant