The Uir, Doomwatch Skyship

Flying, Deathtouch
Whenever The Uir enters the battlefield you may
draw a card for each artifact you control.
Whenever The Uir attacks, each creature able to
block the Uir must do so if able.
Crew 8 (Tap any number of other untapped
creatures you control with total power 8 or greater:
This permanent becomes an artifact creature until
end of turn.)