[lch]

To be honest, I think that having to go to the arena is one of the greatest dangers that a decked-out unit can face, especially as current champion when the others already know what you have. So I certainly would not send in my strongest SC in there. Either some random, uninteresting disposable commander, in case nobody else submits a unit (which is not that uncommon, actually) or some mid-level thug which isn't top notch, but could survive a hit or two and become valuable when he is wielding the champion's trident.