ひび割れた頭蓋骨/Cracked Skull

Enchantment - Aura
Enchant creature <CR>
When Cracked Skull enters, look at target player's hand. You may choose a nonland card from it. That player discards that card. <CR>
When enchanted creature is dealt damage, destroy it.

Enchantment - Aura
Enchant creature <CR>
When this Aura enters, look at target player's hand. You may choose a nonland card from it. That player discards that card. <CR>
When enchanted creature is dealt damage, destroy it.