Glacius Facility

{t}: Add {c} to your mana pool.
{2}, {t}: Reduce the cost of your next Artifact spell
by {4}. You may cast Artifact Spells from your
graveyard until end of turn.
{7}, {t}, Sacrifice this land: Search your library for
a Protoss Artifact, reveal it, and put it into your
hand, then shuffle your library.
Here, on Glacius, our researchers have been developing prototype weaponry inspired by that ancient technology.
-Karax, Khalai Phase-Smith