Quick Note : Do it. Get the hammer. Worth it.
I have 56 Ranger, and was using, or rather, trying to use a Gate Potion when in trouble. Typically very difficult to get off in a fight as the 10 second cast time is constantly interrupted. The hammer processes very quickly, but is slow to swing. Typically, it will process in under 10 seconds, and has never failed when I needed it. Another option is the
Lizard Blood Potion which is an instant cast, but to a difficult place. Of course, I have all three : if really bad, I start clicking the potion, and swinging the hammer. I have not yet needed to use the Lizard Blood Potion.
How to get the hammer? I used puppet strings. Tried the other methods, and just to difficult for a KOS ranger. I waited and watched the bazaar until a puppet string set came up at a decent price. If using this method, be sure to cast cancel magic or other debuff first before using the puppet strings.
Good luck!
Journey far and fare well!