You can use these cards to negate the effect of Dark Elf and allow it to attack without paying LP. Axe of Fools negates the effect of Dark Elf and gives her a 1000 attack boost, but also inflicts 500 damage to you during each of your turns. Forbidden Chalice gives her a 400 attack boost and negates her effect but only for one turn.
No Mortal Can Resist Can be used when your Life points are at least 1000 less than the opponent's. All monsters in the opponent's Graveyard changes to Skull Servants (Zombie / DARK / Level 1 / ATK: 300 / DEF: 200). This skill can only be used once per turn..