Close Encounter

Warp 6 — {5} (Rather than cast this card from your
hand, you may pay {5} and exile it with 6 warp
counters on it. At the beginning of your upkeep,
remove a warp counter. When the last is removed,
conjure two Grey Saucers onto the battlefield. Put this
card into your graveyard.)
Shuffle up to four target creatures into their controllers' libraries.