Talk:Amakusa Shirou/@comment-26233003-20171115053545/@comment-124.121.154.63-20171116025304

At first he doesn't need the grail you can look at his extra Biography

there are records that he was summoned as the class Ruler. Using God's Resolution to emulate command seals, and by using True Name Discernment to utilize a strategy focusing on the enemy's weak points, although he was a step away from obtaining the Holy Grail, he was defeated by the death of his master.

The dream of Amakusa Shirou started from there.

that's it at first he doesn't need a grail but because of his master's death so now he wants the grail so much.