Is there a way for a character to gain Improved Grab (like that of a bear) from a magic item or feat/feat chain? I know there's a Barbarian variant that gives it, but I can't give up any levels to get it. I'd prefer to stay away from actual shape-shifting effects as well.
The character is a Totemist 20 for an arena. I noticed that activating Totem Embodiment with 8 essentia in his Girallion Arms gives him a pretty ridiculous grapple check without even trying. I don't actually want to focus on grappling with this character, since a simple ring can make you immune to it, but I figured I'd like to be able to punish anyone who didn't cover their bases if there's an easy way to add it in.