Garuda is more of a skill check than a gear check IMO.

Some tips that you don't necessarily get in the guides:

1. MT, learn and memorize positioning in phase 2. Leave enough room so that melee DPS can get at her side/back. Don't sit her in a cyclone, but just outside.
2. Minimize kiting distance. When kiting her to the circle, you don't need to take her full to the north. West and in is fine.
3. In the circle (second set of adds) turn her towards the red beam always.
4. Use your cooldowns on the add phases.
5. If you have to OT the red add, know that healers can generate A LOT of aggro. Be prepared.
6. After the circle if you take her by the flag next to where the first cyclone spawns, you have a decent amount of time to keep her still before moving her again. You don't need to always keep kiting her to the edge of the cyclones.
7. It's easier to dodge slipstream if you move closer to her after positioning her. Take a couple steps in.
8. Some other tips I forgot.