I'm doing a replay of Dragon Age Origins. Slogging my way through my least favorite part of the game(the Deep Roads) right now. I'm not that good at the game, so for the harder encounters, I've cheesed them by having one member of my party run forward to aggro one group, then run back to where the rest are in order to deal with them one group at a time. If I let my party fight normally, they accidentally aggro multiple groups and they get overwhelmed. That plus saving after every difficult encounter is helping me get through it.

My warden is an elven mage; she's mostly built for casting ice magic and healing. I usually use Alistair as a tank, Zevran as a dual wielding damage dealer and Leliana as an archer/support unit.