Guardian of the Librarians

The Guardian receives special training in how to manipulate the battlefield to best benefit them and their Librarians. This training gives the guardian a handful of battle maneuvers powered by superiority dice. 

Superiority Dice. You have four superiority dice, which are d8s. A superiority die is expended when you use it. You regain all of your expended superiority dice when you finish a short or long rest. 

Saving Throws. Some of your maneuvers require your target to make a saving throw to resist the maneuver's effects. The saving throw DC is calculated as follows:

Maneuver save DC = 8 + your proficiency bonus + your Strength or Dexterity modifier (your choice)