Skill/U

==Ultimate One==
Rank	User 	Class 	Notes
EX 	Arcueid Brunestud	Berserker	Original rank
X 	Arcueid Brunestud	Berserker	
==Unblessed Birth==
Rank	User 	Class 	Notes
B 	Tristan	Archer	
==Uncrowned Martial Arts==
Rank	User 	Class 	Notes
— 	Karna 	Lancer 	
— 	"Old Man of the Mountain"	Assassin	
==Undying Magus==
Rank	User 	Class 	Notes
A 	Nero Claudius (Swimsuit)	Caster	
==Unending Summer==
Rank	User 	Class	Notes
B 	Mordred (Swimsuit)	Rider	
==Unifying the Nation by Force==
Rank	User 	Class 	Notes
A 	Oda Nobunaga	Archer	
==Unifying the Nation by Force - Innovation==
Rank	User 	Class 	Notes
A 	Oda Nobunaga	Archer	
==Unit Mitosis==
 is a Skill imposed by Tiamat's Sea of Life.
==Universal Bird's-Eye==
Rank	User 	Class 	Notes
B 	Watcher	Watcher	
==Unwavering Patience==
Rank	User 	Class 	Notes
C 	William Tell	Archer	
==Unyielding Will==
Rank	User 	Class 	Notes
A 	Spartacus 	Berserker	
C 	Christopher Columbus	Rider 	
*