Lavaball Trap [Zendikar]

Set: Zendikar Type: Instant — Trap Rarity: Rare Cost: {6}{R}{R} If an opponent had two or more lands enter the battlefield under their control this turn, you may pay {3}{R}{R} rather than pay this spell's mana cost.Destroy two target lands. Lavaball Trap deals 4 damage to each creature.