I still can't decide . I'm thinking Charms, Unbound runes, Crab because charms are expensive . Runes are just really cheap and i am running out of arena points to continue getting them, Although I am not done with medium refines still. and Crab because I was told you cant get him in summon pulls. And although i only get power in these events. Getting the crap unlocks his ability to put Runes into him so it is power

anyone have any more opinions :O