Rule 703.1 · Turn-Based Actions

Turn-based actions are game actions that happen automatically when certain steps or phases begin, or when each step and phase ends. Turn-based actions don’t use the stack.

Subrules

Abilities that watch for a specified step or phase to begin are triggered abilities, not turn-based actions. (See rule 603, “Handling Triggered Abilities.”)

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.