With Master Yi's signature spell "Alpha Strike" being released, what is the ruling for multiple signatures? Can you have 3 copies of "Alpha Strike" and 3 copies of "Highlander"?

According to the rules regarding Signature cards, you cannot have 3 copies of "Alpha Strike" and 3 copies of "Highlander" in the same deck.

The ruling for Signature cards is as follows:

• Total Limit: You can include a maximum of 3 total Signature cards in your deck.
• Shared Limit: This limit applies to the sum total of all Signature cards in your deck, regardless of their name. If you choose to include multiple different Signature spells associated with your Champion Legend, they all count toward that same 3-card limit.

Therefore, you could have a combination such as 2 copies of "Alpha Strike" and 1 copy of "Highlander," or any other combination that adds up to no more than 3 cards total.