When Skyship Weatherlight enters the battlefield, search your library for any number of artifact and/or creature cards, exile them, then shuffle.
{4}, {T}: Choose a card at random that was exiled with Skyship Weatherlight. Put that card into its owner's hand.
If this card leaves the battlefield, the remaining cards that were exiled don’t come back.
The card goes to its owner’s hand as per the errata.
The cards are exiled face up.
You may choose to not find anything when searching your library.