Futaba is a Futabasaurus. He was Htes' first creature, his first Move Card Creature, and currently has no owner.
His card winded up in Tongue's Card Capsule, and was activated along with him. After Tongue's defeat, he blew away. He was later obtained by the Alpha Squad, and given his name. Htes used him in a battle with Link. After Spiny's defeat, his card blew away again. His current whereabouts are unknown.
This Move summons him.
He is the first creature used by the Alpha Squad to first appear in the wild.
Thus, he is the first creature to be given a name after debuting.