Spell Martyrs

People often call Spell Martyrs the best arc nodes in the game, but I honestly think that's a bit of an exaggeration. I certainly like my Spell Martyrs, but they're very easy for my opponent to kill, and you can't get them in place and spam spells through them, which is what I normally do with mine in warmachine. You also can't use them to easily extend the range of support spells, since you don't want to have it blow up just because you want to cast Tenacity on something every turn.

On the other hand they are only a point a model so you can't really complain.