Arda's grin vanished, and she looked between Thag, advancing aggressively, and the bizarre creature he was advancing on.  It looked a little bit dragonish, but like no dragon she'd ever seen.  She frowned at it, trying to formulate a strategy for fighting something that seemed to be mostly composed of slime.  And although she was keeping a strategic retreat as her backup plan if things didn't go well, she too stepped towards Plasmix, only a little bit behind Thag.  She wasn't going to just back down from an attack! No way!