I think Yuna would work perfect like Cecil as:
Summoner/Mage - Archer
Summoner/Mage:
Brave Attacks:
Blizzaga
Thunderga
Firaga
Holy
Flare
Ultima
HP Damage Attacks:
Valefor's Moves (Solaris Beam, et cetera)
Ifrit's Moves (Hell Fire, et cetera)
Ixion's Moves (Thor's Hammer, et cetera)
Shiva's Moves (Diamond Dust, et cetera)
Bahamut's Moves (Mega Flare, et cetera)
Yojimbo's Moves (Zanmato, et cetera)
Anima's Moves (Chaos Dimension, et cetera)
Magus Trio's Moves (Trinity, et cetera)
Archer:
Her special shot moves, especially her Bullet Rain reminding of the 9999 x XX Bullet Rain while having low HP and using the accessory