You have to add the required number of "Required Cards" and "Selectable Cards" as specified below. You are not required to set one of the "Skills Allowed."

Skills Allowed

• Wings of Absolute Zero
• Twins Together
• Perfect Freeze
• Blizzard Jet Stream
• You'll Pay for This!
• Chain of Ice
• Ice Fire Egg

Required Card (1 card)

•  

  Ice Beast Zerofyne

  Xyz/Effect

Selectable Cards (8 cards)

•  

  Diamond Dust

  Trap

•  

  Aurora Wing

  Effect

•  

  Guard Penguin

  Effect

•  

  Blizzard Falcon

  Effect

•  

  Blizzard Thunderbird

  Effect