http://www.wowwiki.com/Earthbind_Totem
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It's helpful to drop a totem just before running from a fight to gain some distance between you and your pursuer, as well as just before your enemy is about to run away. It takes a second to have its first effect, so you should drop it a couple seconds before you need it for best effect.
When attempting to push past mobs in tight quarters (such as in a tunnel), not damaging the mob at all before you plant Earthbind means that the totem's debuff will place it higher on the monster's aggro table than you. This will buy you a second or two extra as the mob turns and knocks down your totem before pursuing you.
This totem is mostly used as an escape tool; it is used to either escape an upcoming danger or escape from a battle gone bad. Unlike [Frost Shock], this totem is more suitable for escaping danger due to its low mana cost, insta-cast, and convenience (since it doesn't need to target or be in front of the target).
It can also be used to snare runners escaping you or your teammates, but the caster always runs the risk of attracting aggro from other other mobs.






