Fresh from jumping out of the underworld, the Double King has landed on the shores of Westeros, right at the start of the War of the Five Kings (as depicted in show continuity). Five kings, five crowns, and he wants them all.

Starting Conditions:

• No one in Westeros knows he's coming, nor does he have any particular knowledge of the TV series.
• The factions of the war are not bloodlusted against the Double King; they will not abandon the war to pursue him, nor will they forget their grudges against each other unless positively forced to. Anyone who would naturally try to manipulate the situation to get the Double King to kill their enemies will do so. Looking at you, Baelish...
• The Double King is absolutely crownlusted; he will not attempt to parlay or ally with any faction led by someone with a crown, unless it's a very, very short term ruse to get close for a murder.
• Melisandre does not know enough about Double King to send scary shadow assassins after him.
• The powers of Essos are a non-factor; they will not come in to aid the Double King, nor will they try to exploit the disruption of the War.

Victory Conditions:

• Westeros Victory: Kill the Double King
• Double King Victory: Claim the crowns of all the Kings in the war.

Double King Feats:

• Combat: Can rip someone's skull right out through their nostrils.
• Combat: Has dual swords and knows how to use them.
• Combat: Has at least three usable hands.
• Combat: Has a lot of very pointy teeth.
• Climbing: Shows aptitude for casually scaling vertical surfaces, including a giant serpent and a sheer crown-shaped wall.
• Durability: Falls off a cliff into water and survives.
• Durability: Gets shot face-first out of a giant cannon into a wall.
• Strength: Physically throws a giant fish out of the water.
• Strength: Can run while carrying a golden crown large enough to fully contain his body
• Strength/Combat: Punches a death god in the eye hard enough to hurt it.
• Technology: Animal powered vehicles including flying machines, muzzle-loading firearms and more modern rocket-propelled guided missile/tracking devices.

Bonus Round: The Double King starts with his mobile fortress. How does he do now?