it says 1 dark tuner 1 + 1 or more non tuner fiend monsters.how is it good in reptillianes? what fiend would you run in that deck?it is going to be very good for Infernities come the Shining Darkness.It is in next months Shonen Jump subscribers should get it by the end of March if your not a subscriber around April 4th or so.
I wouldn't ONLY run Reptiliannes, I'd run a Double Coston as well to get the Earthbound Immortal/S out. I'd put a few other monsters in, depending on usability.