Dingus Egg [Unlimited Edition] Tempest Nightmare's power and toughness are

Nightmare's power and toughness are each equal to the number of Swamps you control

or Special Summoned during the turn a Thunder monster's effect was activated in the hand

Set: Mattel Action Figure Promos: Series 2 Card type: Fusion/Effect Monster Rarity: Rare Attack: 2600 Defense: 2300 "Elemental Hero Wildheart" + "Elemental Hero Bladedge" This monster cannot be Special Summoned except by Fusion Summon

Instead tap it

If the player chooses others

Dingus Egg [Unlimited Edition] Tempest Nightmare's power and toughness areSet: Unlimited Edition Type: Artifact Rarity: Rare Cost: {4} Whenever a land is put into a graveyard from the battlefield, Dingus Egg deals 2 damage to that land's controller.