Can you redirect a spell targeting you to target a planeswalker you control?

Prior to 2020, a special rule allowed players to redirect spells and abilities that targeted 'a player' to a planeswalker that player controlled instead. However, this redirection rule was eliminated from the Comprehensive Rules (the old CR 306.8 and related text) in 2020. Planeswalkers are now simply permanents like any other, and spells that target players do not automatically become valid to target planeswalkers.

Under the current rules (CR 114.1, 114.3), a spell or ability can only target what its text specifically allows. If a spell says 'target player,' it must target a player — it cannot be redirected to a planeswalker you control. If a spell says 'target player or planeswalker,' then it may target either.

Some spells and abilities do explicitly allow you to choose a planeswalker as an alternative or additional target, but that permission must appear in the card's own text or a specific rule — there is no general redirection mechanism anymore.

Example: Your opponent casts Lightning Bolt targeting you. You cannot redirect those 3 damage to your planeswalker. The Bolt resolves and deals 3 damage to you. However, if your opponent had cast a spell that says 'deals 3 damage to any target,' they could have chosen your planeswalker as the target from the start, since 'any target' includes planeswalkers (CR 114.3b).

In summary, there is no player-to-planeswalker redirection in the current rules. Only cards whose text specifically lists planeswalkers (or uses 'any target') can target planeswalkers directly.