The Athena OTK is achieved by the effect of Honest and Athena, while you have Ultimate Offering
on your side of the field. While you will take 500 points of damage
each time, your opponent will take 600 points, so by doing it 14 times,
your opponent will have lost 8400 points of damage, while you have lost
only 7000. It is advisable to do this OTK only when both players' life
points are at 8000, or when your life points are decently higher than
your opponents (for example, your opponent has 3400, and you have
4000). Some of the cards that might be useful are Mysterious Puppeteer, which take out the damage from Ultimate Offering, and A Cat of Ill Omen, which help brings Ultimate Offering closer to your side of the field. Something that will really help is Hecatrice and Valhalla, Hall of the Fallen.
This combo is made use of many LIGHT monsters, like the Lightsworn,
since they work really well with Fairies. Use them wisely because they
fit well with Athena and Honest as a support, making this Deck really
I've used to play a deck like this and I can say I'm quite happy with the results.It's a fairy easy OTK to pull out and it's a funny deck to play with.I recommend for everyone to test it.
Info and etc used from: YGO wiki