Thank you for information thus far. I have joined the guild K-on , what steps can they give me to reach a level 35 defeat level on ruby? Speaking to wink rescues I recently did the 2000 wink 11 pirate rescue and provided pirates were star level 2 and below. I would really like to have the ruby pirate rare if at all possible. My ingame name is Goemon if you can help.
The above player gave it away: Enhance the 1-star, 1-cost pixies to Gold Frame, and you already have a team that has over 2500 attack with only 5 cost. Of course, the boss's defense gets higher as its level goes up, so the above strategy works only to a certain extent, but you also have your assists, as well as event pirates that can add in to the damage.
The above method is probably very effective up to level 20 of the boss; over that, you should probably consider getting higher rated pirates (for me, it's Gold Humitas), since the multipliers give higher bonuses to stronger pirates.
Of course, explaining the math is going to take a while, so let me rephrase all of that in one sentence.
A team of Gold Merom Pixies will take you easily to Level 20 of the boss. After that, consider getting other Gold Pirates like Humita, so you can benefit more from the bonus pirates or be less affected by the raid boss's defense.