I also see nothing really wrong on how you play. The "normal" AST playstyle contains:

- do boss mechanics (obviously)
- heal if healing is needed (no one need to be at 100% life)
- spread your cards
- do damage if there is nothing else to do

Or simply: Always Be Casting.


I would advice to get rid of the Rescue-skill. Some players like to rescue other players from AoEs. But honestly, if someone stands in AoEs, its not your job to take care of that, too. Some people have to learn the hard way, that fire is hot ; )
And if you do it way to often, they may report you for abusing the Rescue-skill.


Playing a healer is the most unthankful job. You dont get any mounts (not like tanks) and everyone forgot the cards, raises or shields/regen you did. Instead, everyone is like "oh look, I m top 1 dps!" or "you did great, tank!". But hey, thats the price we re paying ; )