Robotics Bay

Cannot attack or block, Shield 2, costs {5} less if
you control a building named Robotics Facility.
Observer, Warp-Prism, Immortal, Colossus, or
Disruptor creature spells you control cost {1}
less to cast.
{t} : Search your library for a card named
"Gravitic Boosters", "Gravitic Drive", or
"Extended Thermal Lance" and put it
into your hand, then shuffle your library.