Mana Cost: 8
Card ID: #1 "Legendary Dragons"
Infernal Poison - Dark Element, Mana Cost 2, 20 Damage, Poisons all of the opponent's monsters.
Super Throw - Void Element, Mana Cost 1, Sacrifices your standby monster with the highest cost and inflicts 60 splash damage on the opponent's summoned monster.
SP Skill - Mana cost 3, Inflicts 5 splash damage on the opponent's summoned monster. Imposes a swap block on opponent's summoned monster for two turns.
Reverse Skill - Mana Cost 4, Poisons your other monsters and increases their attack by +5.
This is a good build around dragon card. It has a dark type attack which no element resists and an attack that deals splash damage which cannot be resisted. Pack up your slimes and start throwing away. Prehaps the biggest drawback to Swamp Snake Nidhoggr is that it's Infernal Poison attack deals below average damage for a 2 mana attack on an 8 mana cost monster. Super Throw on the other hand is very effective.