yes, ugh now i have to look them up...ahh.. 1. deep freeze 2.ward against foes 3. barbed trap 4. spiked trap 5. frozen burst and im probably missing some but thats a start.
frozen burst is more of a splash effect than a a AOE, because it causes slow AFTER it hits the person. For aoe snare, id go for deep freeze or barbed trap, barbed trap causes damage+knockdown+crippled, btw.