Sanwell, Avenger Ace — ruling 1

If Sanwell, Avenger Ace is somehow an artifact creature, its first ability will see itself while it is attacking.

Sanwell, Avenger Ace — ruling 2

You must pay all costs for a spell cast using Sanwell's last ability.

Sanwell, Avenger Ace — ruling 3

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.

Sanwell, Avenger Ace : règles, fonctionnement et interactions (MTG)

Sanwell, Avenger Ace is one of those cards players keep asking about. Here is, in plain words, what its official text says, the rulings published by Wizards of the Coast, and the combos players actually run.

Official card text

As long as an artifact creature you control is attacking, prevent all damage that would be dealt to Sanwell. 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.

How it works : Sanwell, Avenger Ace

Original English text — Wizards of the Coast / Scryfall

#1October 14, 2022· Wizards of the Coast
If Sanwell, Avenger Ace is somehow an artifact creature, its first ability will see itself while it is attacking.
No other card is named in this ruling.
#2October 14, 2022· Wizards of the Coast
You must pay all costs for a spell cast using Sanwell's last ability.
No other card is named in this ruling.
#3October 14, 2022· Wizards of the Coast
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.
No other card is named in this ruling.