Aether Shrine

Artifacts you control have hexproof. Artifact creatures you control have vigilance.
{t}: Add {c}{c}{c} to your mana pool. You also gain {e}{e}{e} (Three energy counters).
{e}{e}{e}{e}{e}{e}{e}{e}{e}: Reveal the top seven cards of your library. Put up to three artifacts revealed this way onto the battlefield. Put the rest at the bottom of your library.