War of the Spark

Parhelion II | Legendary Artifact | Vehicle | Flying, first strike, vigilance Whenever Parhelion II attacks, create two 4/4 white Angel creature tokens with flying and vigilance that are attacking. Crew 4 (Tap any number of creatures you control with total power 4 or more: This Vehicle becomes an artifact creature until end of turn.) | Adam Paquette

Silent Submersible | Artifact | Vehicle | Whenever Silent Submersible deals combat damage to a player or planeswalker, draw a card. Crew 2 (Tap any number of creatures you control with total power 2 or more: This Vehicle becomes an artifact creature until end of turn.) | Daniel Ljunggren

Bolas's Citadel | Legendary Artifact | | You may look at the top card of your library any time. You may play lands and cast spells from the top of your library. If you cast a spell this way, pay life equal to its mana value rather than pay its mana cost. {T}, Sacrifice ten nonland permanents: Each opponent loses 10 life. | Jonas De Ro

Mizzium Tank | Artifact | Vehicle | Trample Whenever you cast a noncreature spell, Mizzium Tank becomes an artifact creature and gets +1/+1 until end of turn. Crew 1 (Tap any number of creatures you control with total power 1 or more: This Vehicle becomes an artifact creature until end of turn.) | Wayne Reynolds

Vivien's Arkbow | Legendary Artifact | | {X}, {T}, Discard a card: Look at the top X cards of your library. You may put a creature card with mana value X or less from among them onto the battlefield. Put the rest on the bottom of your library in a random order. | Zack Stella