The impact of Evolution of Combat on Slayer and Prayer has been the cause of much discussion among the community. During the beta, many players commented that Prayer was underpowered and that Slayer was now too intensive with the new ability system. To remedy this, we are increasing the buffs that Prayer offers for the EoC launch, and a couple of months ago we unveiled the Momentum ability to aid players with lengthy, low-intensity combat.
This video from A Friends channel covers Prayer and Slayer (along with combat in general) in the EoC.
The RuneScape Team
Discuss this here.