Warrior/priest help.

[moooooooooooo]

Hi,
me and my friend are playing warrior/priest in 2v2 me being
the priest were palying near 1500 rating (our armor is bad only hit 80
a week ago ) we keep getting owned by dk/healer teams and
hunter/healer.
With dk/healer it usualy starts by the dk sitting on me my warrior
trys to get him off me by putting presure on him and forcing him to go to
his healer but he will get me back with death grip when i try to
run not to mention i am slowed the whole game even when i dispel
COI and diseases i still can barly move his aoe move is slowing me
or somthing i dont know so i can never get away and when i do get
away his pet is on me i cant fear him i try shackle him but when my drink starts
working he is on me we tryed killing his pet but he gets it back very fast.

Can anyone give me any advice on what to do or is there any guide for
this setup i looked on arenajunkies couldn't find anything tho not sure
where else i could find it.

[Upayidance]

Get moar resiliance :P

[Moar Pew Pew]

For one, try doing at least a little research. If you don't know what spell is destroying you, one would think it wise to go check what it is.

But, just this once, I'll do a little hand holding. From what I can tell, this DK is most likely Unholy, as you mentioned "an AoE spell that slows." One of their talents causes their main attacks, Plague Strike, to release a small AoE slow whenever cast. The talent is called Desecration.

[Crimsonak]

Hi,
me and my friend are playing warrior/priest in 2v2 me being
the priest were palying near 1500 rating (our armor is bad only hit 80
a week ago ) we keep getting owned by dk/healer teams and
hunter/healer.
With dk/healer it usualy starts by the dk sitting on me my warrior
trys to get him off me by putting presure on him and forcing him to go to
his healer but he will get me back with death grip when i try to
run not to mention i am slowed the whole game even when i dispel
COI and diseases i still can barly move his aoe move is slowing me
or somthing i dont know so i can never get away and when i do get
away his pet is on me i cant fear him i try shackle him but when my drink starts
working he is on me we tryed killing his pet but he gets it back very fast.

Can anyone give me any advice on what to do or is there any guide for
this setup i looked on arenajunkies couldn't find anything tho not sure
where else i could find it.

The weakness of priest warrior is priests are generally weak unless their partner can give them space or freedom in order to unleash their potential which as a priest is your ability to be incredibly offensive.
There is no way a warrior can peel a Deathknight from you as a priest it isn't going to happen so what has to be done is the warrior goes onto the DK's healer and you as a priest start DPSing the DK. Wait for Anti-magic shell, after it's warn off pop your shadowfiend and start nuking him. It's very important that you ofcourse lure the DK out of LoS of his healer.

What this means is given that the DK may be put in a threatening position it means his healer has too come over and assist him, at which point on coming into LoS he will usually get feared by you. Which means your warrior can take oppertunity to either finish off the enemy healer or the enemy DK because of the split DPS that has been going on.

Unfortunatly speaking though it's pretty much an anti setup for you.
As a priest you aren't going to last against a DK, and while your warrior is capable of killing any healer except a druid in a reasonable amount of time. It usually isn't as fast as a DK is gonna kill you. Especially when you're being offensive too.
Not to mention ofcourse even though the tactic I mentioned is generally speaking the most effective one, it is very situational. Also due to the nature of survivability levels from DK's it's questionable with your gear as to whether it's even doable for you.