special effect revealed to a choosen player

[best_player_88]

http://www.playdota.com/heroes/admiral#skill235
Torrent: • The initial bubble effect is only visible to allies.
How is it possible to make special effect to be revealed only to a choosen players?

 

[Arhowk]

http://www.hiveworkshop.com/forums/world-editor-help-zone-98/getlocalplayer-faq-224876/
http://www.hiveworkshop.com/forums/tutorial-submission-283/getlocalplayer-225738/