So we finally have a first look at  the magic dolls and some info about what they do...

On the left is the Werewolf doll and on the right the Succubus doll.  The werewolf causes a melee character to crit occasionally, from our tests approximately 1 in 25 hits is a crit, however it seems that on mops that have more hit points the critical hits happen more often (more testing required).  The succubus regenerates 15 mps per minute(the succubus doll is probably gonna be a favorite of  mages given the difficulty in obtaining mp regen items) and even allows regeneration while heavy (this is just WOW and makes the succ doll a must have for DEs and Royals as they will suddenly be able to regenerate while full of pots allowing for longer hunts while still being able to use all buffs yay!).  According to info obtained from someone on test, there are 6 dolls available including a Bugbear doll which gives weight reduction equal to a troll belt.  Our source couldn't remember what the other dolls are but we'll find out eventually as our LinOne team are trying to make more dolls so that we may find out what they look like and what they do.

 When You obtain the doll you get a random one, you don't get to choose.  The Dolls last for 30 mins before they disappear and can be resummoned or desummoned at anytime.  You use 50 crystals to summon the werewolf not sure about any of the other dolls yet(finally we know what the crystals do).  You may only summon one doll at a time but having multiple dolls allows you to take advantage of each doll's bonuses depending on situation, for example... using the Succubus doll to run up to a boss so that u may regen your mana while heavy, and then switching to the Werewolf doll before engaging the boss so that you may kill it as fast as possible.  Dolls are tradable, they can't be attacked or killed, they don't battle for you in any way, they don't level up, they don't count as a summon(as far as charisma matters) and they follow you no matter what (even if you outrun your doll you still receive it's bonus and it catches up to you eventually).

Coronis has written a nice article on how u obtain a doll so i won't repeat that however I have a few SS of what happens when you receive the doll, what it looks like in your inventory and finally what the crystals are used for...