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

• Prescience
• Gravekeeper's Lot
• No Mortal Can Resist
• Sealed Tombs

Required Card (0 card)

Selectable Cards (8 cards)

•  

  Blast Held by a Tribute

  Trap

•  

  Keldo

  Effect

•  

  Kelbek

  Effect

•  

  Zolga

  Effect

•  

  Agido

  Effect