Beginning Phase

Untap Step

Game Action

Happens automatically as part of the turn order.
Does not use the stack, so cannot be interacted with.

Phased out permanents phase in.
Game Action

Happens automatically as part of the turn order.
Does not use the stack, so cannot be interacted with.

If it is day ☀️, and the previous turn’s active player didn’t cast any spells, it becomes night 🌙. If it’s night 🌙, and the previous turn’s active player cast ≥2 spells, it becomes day ☀️.
Game Action

Happens automatically as part of the turn order.
Does not use the stack, so cannot be interacted with.

Active player’s permanents untap unless a card explicitly states otherwise.

Upkeep Step

Triggered Ability

Happens automatically as part of the turn order.
Added in APNAP order.
Uses the stack, so can be interacted with (following APNAP order).

“At the beginning of upkeep” triggers are put on the stack.
Round of Priority

Players can cast an instant spell, or activate an ability any time they have priority.
Players may cast non-instant spells when they have priority if it is their main phase and the stack is empty.
State-based actions are also checked.

Round of priority + state-based actions.

Draw Step

Game Action

Happens automatically as part of the turn order.
Does not use the stack, so cannot be interacted with.

Active player draws a card.
Triggered Ability

Happens automatically as part of the turn order.
Added in APNAP order.
Uses the stack, so can be interacted with (following APNAP order).

“At the beginning of draw step” triggers are put on the stack.
Round of Priority

Players can cast an instant spell, or activate an ability any time they have priority.
Players may cast non-instant spells when they have priority if it is their main phase and the stack is empty.
State-based actions are also checked.

Round of priority + state-based actions.