Board Thread:Warhammer 40k General Discussion/@comment-6078851-20130130174042/@comment-3258762-20130210102215

Magnus the Red: We all know his psyker powers

Sanguinius: Could see into the future

Horus: ???

Lorgar: Could look into the warp and comprehend what he saw (Later on he could also use psychic powers)

Russ: Basically the Dovahkiin of the 31st millenia, he could shout a psychic roar with such force that it was like standing underneath a macro cannon firing.

Angron: Mostly immune to the effects of warp powers (Not Pariah-esque, just like an innate psychic shield)

Mortarion: Could breathe out warp-born toxic fumes that could corrode Power Armor.

Fulgrim: Also had some minor sight power, not entirely sure what.

And that is the ones who's powers have been mentioned.