Unbeatable set up for 4x shaman + healer?

[Boylston]

Should I play LoS?

Absolutely. The good news about 4 DPS, 1 Healer teams is that you can easily burst through their limited healing.

Play LoS so that you force their ranged DPS to get into a situation where they have to be close in order to be doing any damage. Coordinate with your partner so that he can help take some of their DPSers out of the action (cyclone, fear, stun, earth shock). I have a Pally partner, so he'll often charge towards my first squishy kill target to stun them so that they can't run out of LoS. I can kill a shaman if my partner lays down a 1-2 sec stun and keeps him from running too far.

The bad news about 4 DPS, 1 Healer teams is that you really, really, really need to burn the first 1-2 people down fast, particularly the mage. You're going to get a fair amount of AoE damage from the mage, chain lightning, and seeds of corruption, so an enemy needs to die fast in order to reduce that incoming AoE dmg.

Play LoS, get them to close, make sure your partner is engaged in more than just healing, and go for a fast kill. I think Shaman was a decent first target, but mage should have been high on your list too.