When activated, your next Nature spell with a base casting time less than 10 sec. becomes an instant cast spell. Nature's Swiftness shares a cooldown with Elemental Mastery.
Nature's Swiftness is a Shaman ability from the Restoration tree. This ability, when activated, causes the next nature spell with a casting time less than 10 sec to be instant. For example, activating Nature's Swiftness and then casting Lightning Bolt will instantly hurl a Bolt without that spell's normal 2.5 second casting time. Nature's Swiftness does not affect channeled spells.
After activating Nature's Swiftness, a buff appears indicating the next cast will be instant. This buff will remain indefinitely until the effect is used, or until the player dies. The two minute cooldown will not begin until this buff is consumed.