Forum:Card effect question

I have a quick question about card effects. If I use monster reborn on a monster in my opponents graveyard to bring it on to my side of the field, do I get to use that monsters effect? The card I have in question is "Athena" where every time a fairy monster is summoned YOUR opponent loses 600 life points. So if I control Athena and my opponent summons a fairy monster even though its their card, would they lose the 600 life points since I control the card?

Thanks for the help!