Avenger and Doom Dragon
Infernity Doom Dragon
ATK:
3000
DEF:
2400
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.
Infernity Avenger
ATK:
0
DEF:
0
When a monster you control, except "Infernity Avenger", is destroyed by battle with an opponent's monster and sent to the Graveyard, while you have no cards in your hand, you can Special Summon this card from your Graveyard. In that case, the Level of this card is equal to the Level of your destroyed monster.