Righty Driver (SR10-EN019) [Structure Deck: Mechanized Madness]

For a Synchro Summon, you can substitute this card for any 1 "Synchron" Tuner. If this card is Normal Summoned: You can Special Summon 1 "Lefty Driver" from your hand, Deck, or GY. You can only use this effect of "Righty Driver" once per turn.