1 "Performapal" monster + 1 Level 5 or higher DARK monster If this card is Fusion Summoned: You can inflict 100 damage to your opponent for each card on the field, then, if this card was Fusion Summoned using a Pendulum Monster as Material, destroy 1 monster your opponent controls, and if you do, inflict damage to your opponent equal to that monster's original ATK. You can only use this effect of "Performapal Gatlinghoul" once per turn.
not quite. you can't repeat this card's 'second' effect and its 'first' effect is not as damaging. This is all one Hopt effect.
You could spam Lapis' effect to ftk your opponent without thier interaction. This is decent removal and burn. you could use this to otk burn but not ftk burn.