To preface this, I'm playing a Thundercaller Bard that, by virtue of good loot rolls and being the only guy to use a shield, ended up with 25 AC at level 4, which makes me the de facto tank of the party. That being said, I can't seem to draw any aggro. I've looked for feats and such for getting enemies to attack you instead of the squishier members of the party, but I can't find any, and the last couple of sessions have been highlighted by enemies ignoring the 6'3 viking quite literally calling down the thunder, instead thinking that the sorcerer firing off magic missiles is the more immediate threat.
So is there anything I can do to draw aggro?
