I think there are 3 builds for wardens: 1. Pets, 2. Melee, 3. Magic
U should add stats depending on your build.
If magic i would add Int, Wis, and Luck or the one that lowers enemies magic resistance. (int raises heals and magic dmg and wis is important for heals)
For melee i would go Str, Luck, and the one that raises % of ignoring enemies armor.
Dunno for pet build, probably same as melee since pet will tank anyway...