5 wings 6 DivFav 10 Divine Plea
in kills and 3 wipes this is not enough. I had the same problem, but once I started using them my output went up, by quite alot. If you have cooldowns, use them, and more importantly, think ahead when to use them. For Megaera, we had 1 healer use cd's a rampage and rotate, and have the dps cooldowns backup if needed. I knew the 3rd and 6th rampage would be mine, so I could plan ahead and know when to use them.
Apart from that, raw int gems are not something I'd personally want. I can see the reasoning for the jc gems, but gemming full spirit for blue and full int for red is not my personal choice, I'd rather go with int/spi and mast/int, since mastery > int.