Rule 206.4 · Expansion Symbol

Players may include cards from any printing in their constructed decks if those cards appear in sets allowed in that format (or those cards are specifically allowed by the Magic: The Gathering Tournament Rules). See the Magic: The Gathering Tournament Rules for the current definitions of the constructed formats (WPN.Wizards.com/en/rules-documents).

Other rules in this chapter

Ask the judge Pro

The life counter has an AI judge that answers your play citing the exact rules. It is part of Gatewatch Pro; the rules, Oracle text and rulings stay free.