Return up to two target creatures to their owner's hand. You may search your library and/or graveyard for a card named Jace, Arcane Strategist, reveal it, and put it into your hand. If you search your library this way, shuffle.
You may cast Jace’s Ruse without choosing any target creatures. You’ll just search for Jace, Arcane Strategist. However, if you choose any targets and all of those targets become illegal before Jace’s Ruse resolves, the spell won’t resolve and you won’t search.