Rule 903.10 · Commander

The Commander variant includes the following specification for winning and losing the game. All other rules for ending the game also apply. (See rule 104.)

Subrules

903.10a

A player who’s been dealt 21 or more combat damage by the same commander over the course of the game loses the game. (This is a state-based action. See rule 704.)

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.

Open the judge in the life counterWhat is Pro