Tournament rule 602.4.b.4.b.1 Example
Example: A draft deck with a domain identity of Fury/Body/Order could use signature spells that are Fury/Order or Body/Order, but not signature spells that are Fury/Mind or Body/Chaos.
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Example: A draft deck with a domain identity of Fury/Body/Order could use signature spells that are Fury/Order or Body/Order, but not signature spells that are Fury/Mind or Body/Chaos.