Part 20: 1
While this order sounds awesome it costs a ton of CP and does negligible damage.
This news report is a very subdued way of saying "HOLY SHIT MAGIC!"
The Shamrock has a different inventory grid as you can see. Note to self: Use Shamrock.
Chapter 15: Citadel Ghirlandaio (Part 1)
To Fell a Citadel, The Cruelest Order, Bracing for Battle, Doubts
Fight for Ghirlandaio