Unrivaled Warrior Trophy
Raise the level of any officer to 99.
This can be done by either spending Sanada Clan experience in the Training Dojo or by grinding EXP out in battles. Once any officer’s level reaches 50, you will need to spend gold to unlock Special Training for them at the Training Dojo, which increases their level cap by 10. Once they reach the new cap, they will need to have it raised with Special Training again until they reach level 99. As Yukimura already needs to be raised to level 50, it might be quickest to continue levelling him to 99. Once your officer reaches level 99, the trophy will pop.