+tank (3)
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.)
Whenever Serum Tank or another artifact enters the battlefield, put a charge counter on Serum Tank.
, , Remove a charge counter from Serum Tank: Draw a card.
At the beginning of your upkeep, surveil 1. (Look at the top card of your library. You may put that card into your graveyard.)
Gatherer works better in the Companion app!
, 
, Remove a charge counter from Serum Tank: Draw a card.