The set of creatures affected by Bleeding Effect’s ability and how they are affected is determined as the ability resolves. Creatures you begin to control later in the turn won’t gain any abilities, and the abilities gained won’t change if creature cards enter or leave your graveyard after the ability has resolved.

If one of the creature cards in your graveyard has one or more variants of the listed keywords (for example, hexproof from white), creatures you control gain those specific variants.