Tatsuka Rikka. That is my name. Some time ago, I landed in an alternate DxD world and found out I have a Mystic Eyes that lets me analyze every spell that I sees and a replenishable Command Spell that allows me to transform into Servants, to which they're the ones in control of. Oh, did I mention the transformations are based on a num gen? (No harem or pairing for MC) [Also on Ao3]Crossover - Fate/stay night & High School DxD/ハイスクールD×D - Rated: T - English - Supernatural/Fantasy - Chapters: 5 - Words: 28,823 - Reviews: 29 - Favs: 221 - Follows: 309 - Updated: Oct 24 - Published: Sep 30 - OC, H. Issei, Rias G.