What do...?
LoS and wait til RoF runs out or the mage moves.
Run away, LoS, usually in PvP you counter a cooldown with a cooldown, if he wants to use that defensive just run imediatly off (I would not recommend using dash) and try restealthing, that's considering you have a decently close LoS to use...
if you have an instant cyclose to use too, gg use it and run.
Great news! Your kitty charge is what you need to use here. Kitty charge actually jumps over RoF. I laugh so hard when a Mage thinks he is safe in there. Or if you are a NE druid, use shadowmeld and get back into prowl and wait it out
Alternatively just eat it and trinket it, since it starts the DR on deep freeze.
Insta cyclone him.
Cyclone him and spam /lol macro.
Get your holy paladin friend to Hand of Freedom you.
Cyclone him/ Feral charge cat him
Rot him and then lol when he blinks.
Don't sweat the details!!!