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As long as an artifact creature you control is attacking, prevent all damage that would be dealt to Sanwell, Avenger Ace.
Whenever Sanwell becomes tapped, exile the top six cards of your library. You may cast a Vehicle or artifact creature spell from among them. Then put the rest on the bottom of your library in a random order.
If Sanwell, Avenger Ace is somehow an artifact creature, its first ability will see itself while it is attacking.
If you choose not to cast a spell this way, it goes to the bottom of the library with the other exiled cards. You can’t wait and cast it later.
You must pay all costs for a spell cast using Sanwell’s last ability.
