Those who examine the amulet too closely have been known to become part of its ornate carvings.

The Brothers' War Retro Artifacts

Quicksilver Amulet

{4}, {T}: You may put a creature card from your hand onto the battlefield.

"If powerstones are energy stored in material form, could we store matter as energy in the same way?"
—Rayne, research notes

"Wonderful! You got a lion on your first try. Now put it back."

o4, oc
T: Choose a creature card in your hand and put that creature into play.