In vanilla minecraft, there are tags in the datapack that affect vanilla mob abilities such as stray which uses "freeze_immune_entity_types" and "skeletons". These entity type tags can be used as powers so the datapack doesn't have to be changed again, for example a player can get the "freeze_hurts_extra_types" tag for themselves and other players and mobs that this can be used for origin.
In vanilla minecraft, there are tags in the datapack that affect vanilla mob abilities such as stray which uses "freeze_immune_entity_types" and "skeletons". These entity type tags can be used as powers so the datapack doesn't have to be changed again, for example a player can get the "freeze_hurts_extra_types" tag for themselves and other players and mobs that this can be used for origin.