Hi all. Does anyone know what is the best strategy is to get as much EP as possible?

Kill the EG yourself. you get 3x EP for MVP and last hit.

And ofcourse: level up your slayercards! It's mentioned a few times here and there, but if it's the first time you play, then it's still easy to miss that detail. The higher the level of your slayercards, the biggertheir bonus. It increases every 5 levels (together with the picture change on the card)

Also remember that there is 1 normal grade slayer card in the normal gacha! About 30 tickets is usually enough to get it without a card reveal (though I did once spend 150 trying to get it). Even if the bonus from the normal grade slayer is relatively small, the bonusses of the slayer cards are multiplative, so combined with the other slayer cards, it adds up very quick.

The maximum Slayer multiplier for phase 1 is 7.02, so 100,000 normal seductionpower translates into 702,000 seductionpower for the event! In phase 2, more slayercards are added, and the maximum multiplier increases to (roughly) 30 or 40.

Three more slayer cards. There is another N card.