When she's next to an ally she can allow them to get up to three different stat buffs using tactics(Attack is only +4). Because her Attack stat is such garbage, she can be used for chip damage. Her Speed is above average too, so she can prevent a lot of doubles, further more if she has a Speed boon.
The way I see it, she's someone I'd have on my cheer leader team. She can buff multiple stats at once while being able to take a hit. If needed, she can use her allies buffs and potentially nuke on EP or even hit just enough to put your opponent in single digit HP.