User blog comment:Koishi-Komeiji/Miyu Edelfelt/@comment-4802891-20180902120439/@comment-24965192-20180902121828

Her entire skill set is her using Gae Bolg. Her Extra attack is when she releases the true name of Gae Bolg. The only reason why it isn't at Noble Phantasm strength is due to being an imitation (via class card install) which ranks down the Noble Phantasm.

I'm supposed to write out two Noble Phantasms for her in Bond 5. One is her weapon, Gae Bolg, which I'll explain is being utilized as a normal weapon in this work; and the other is Child of God, which is the representation of her being the complete Holy Grail able to grant miracles.