Deathknight+ Rets. Talentree

[Mokoi]

I am also running this comp, 4 pallies and a DK, and currently my DK is a DPS since when I try him as a tank, I get roflstomped. His gear is mostly Naxx10 level, I think his GearScore is around 4k with the icy touch glyph that gives him more than enough Defense, but he just takes SO much more damage than my prot pally takes (pally has a 4.7k GS, so I understand some of it is gear, but I don't know, I think im doing it wrong.

Can anyone give some advise on rotations for a Blood Tank? Is it just Death Strike spam while keeping blood runes on cooldown for the dmg reduction talent?

I would like to keep my DK as a tank, gearing him now, but reluctant to spend his 150 off triumph badges on tank gear if he isn't going to be anywhere near as useful as my pally is now.

[Nemis79]

My rotation is IT, PS, Pest, DS, BB and Rune Strike whenever its up.

On paladins I have a click macro that does JoW/JoL, DS, CS, Cons, HoW, DP, AT. And a macro that casts Instant FoL on the DK like this:

#showtooltip Flash of Light
/cast [@tank] Flash of Light
/stopcasting

So it only casts whenever the AoW proc is up. AoW procs constantly so its not a problem keeping the DK healed. You also have a lot of healing talents in the blood tree you can use.