Perplexing Symbiote

When you cast Perplexing Symbiote, target opponent reveals his or her hand. You may have Perplexing Symbiote enter the battlefield as a copy of a creature in that player's hand.
Basic landcycling {2} ({2}, Discard this card: Search your library for a basic land card, reveal it,
put it into your hand, then shuffle your library.)
Though they assimilated with the wildlife, what they are remains a mystery.