trigger_add_or_remove_tf_player_attributes

(Note: Attributes can also be added with Vscript, which also let's you clear the attribute cache - making this entity effectively obsolete) trigger_add_or_remove_tf_player_attributes is an entity that sounds powerful on paper, due to its ability to add an item attribute directly to the player...

when falling hopeless players touches this trigger before hitting the ground fall damage will not take effect on them -this is for those who doesn't have the special fgd or doesn't know how to use actually trigger_add_or_remove_tf_player_attributes.