Infernity Doom Dragon

[ Dragon / Synchro / Effect ] 1 DARK Tuner + 1 or more non-Tuner monsters Once per turn, if you have no cards in your hand, you can select 1 monster your opponent controls. Destroy that monster and inflict damage to your opponent equal to half its ATK. This card cannot attack during the same turn you activate this effect. ATK/ 3000 DEF/ 2400