Aira (TFE)

Aira is a character from Fire Emblem 4, and her class is "Myrmidon", meaning that she is an expert with the sword. Myrmidons' attacks focus primarily on speed and accuracy, rather than power. As a result, Aira is one of the fastest of all playable characters, and while she may not have Sigurd or Seifer's brute strength, she can still hold her own, and is mildly stronger than Lyn. Aira can be promoted at the player's Base on any map and at any time, so long as she is already at LV30. However, it's recommended to wait until she reaches LV40, so that she gets some extra growth.