Renferel gains new mechs based on phase AND platform.
http://www.wowhead.com/guides/elerethe-renferal-strategy#mythic-difficulty
- Spider Form
The spiderlings buff the boss so they must be kept 10 yards away from her. The tanks are also linked so they will want to stay within 20 yards of each other. This will mean precise positioning for the tanks.
Web of pain(link) now does damage and knocks players that touch the beam which connected the effected players. This will further complicate the tanking position.
When vile ambush happens (Big aoe run away) the linked targets need to run together to assigned spots.
- Bird Form
Raking Talons now does stacking damage as it hits the tank. "Tanks must taunt off to split the two back-to-back 
Raking Talons hits, and should use their most powerful Active Mitigation or a cooldown to mitigate the damage of each strike."
- First Platform
On the first platform, vile ambush (big aoe run away) leaves behind webs which slow players and spawn spiderlings. We will need to adjust our positioning after each vile ambush.
- Second Platform
In rok form he does "Violent Winds" Which is the same as gathering winds, except in a cone. Its a shared cleave that leaves a debuff. We need 2 groups to alternate soak this mechanic.
- Third Platform
Boss summons eggs which will burst when stepped on OR on the next vile ambush (big aoe run away). We may pre-pop these so we dont have to deal with them all at once.
Fifty Shades of Pink - REAL VERSION 