When Predatory Focus resolves, you choose whether to use its effect or not. If you choose to use it, all your creatures will deal their combat damage to the planeswalker or defending player this turn whether or not they become blocked. You can't have any of them deal combat damage to creatures that block them. If you choose not to use its effect, nothing happens.
2008-04-01
wotc
If a creature is attacking a planeswalker, assigning its damage as though it weren't blocked means the damage is assigned to the planeswalker, not to the defending player.
2006-04-01
wotc
Will even apply to creatures that entered the battlefield after it resolved (which obviously must have Haste in order to attack).
Format Legality
Standard
Not Legal
Future
Not Legal
Historic
Not Legal
Timeless
Not Legal
Gladiator
Not Legal
Pioneer
Not Legal
Modern
Legal
Legacy
Legal
Pauper
Not Legal
Vintage
Legal
Penny
Legal
Commander
Legal
Oathbreaker
Legal
Standardbrawl
Not Legal
Brawl
Not Legal
Alchemy
Not Legal
Paupercommander
Not Legal
Duel
Legal
Oldschool
Not Legal
Premodern
Not Legal
Predh
Legal
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