Rate my sm Eirika

A glass cannon.

I glass cannon that can take a hit from Nino to get into desperation to player phase everyone else.

Her support, C slot, and special are all kinda underwhelming in this case. She isn't much of a support and since she will likely be re-positioned after an attack any sort of smoke skill would be great here. Never run a normal rally skill over reposition on any unit, double rally works but normals don't give better arena score. The special is good and all, but since this is a glass cannon without skills like heavy blade she won't trigger a 3 charge often enough to warrant it. Moonbow is just generally better and it allows it to more efficiently take down armored units. Other than that upgrade the sacred seal to max and its solid. The C slot could also be replaced with cavalry buffs if that is the team you want her in, though she is still weaker than reinhardt so its not really better to use her as the team's burst mage.