306.1
A player who has priority may cast a planeswalker card from their hand during a main phase of their turn when the stack is empty. Casting a planeswalker as a spell uses the stack. (See rule 601, “Casting Spells.”)
A player who has priority may cast a planeswalker card from their hand during a main phase of their turn when the stack is empty. Casting a planeswalker as a spell uses the stack. (See rule 601, “Casting Spells.”)