Your Superiority Dice are d4s, not d6s--the previous player must have had those incorrect--, so you'll need to fix that on your character sheet.
Your two known Manuevers are:
ADMINISTER AID: As an action, you can expend a superiority die to tend to a creature you can touch. The creature regains a number of hit points equal to the number rolled + your Intelligence modifier.
CRIPPLING STRIKE: When you hit a creature with a weapon attack, you can expend one superiority die to cripple the creature. You add the superiority die to the attack's damage roll and the creature gains 1 slowed level until the end of their next turn.
Critical Analysis allows you, as a bonus action on your turn, to analyze a target you can see within 60 feet of you. For the next minute, or until you analyze another target, you gain the following benefits:
- When you analyze a hostile creature, your attack and damage rolls made with weapons with the finesse property or blaster weapons against that target may use your Intelligence modifier instead of Strength or Dexterity.
- When you analyze a friendly creature, the target can end your Critical Analysis on them (no action required) to add your Intelligence modifier to one attack roll, ability check, or saving throw. Once a friendly creature has benefited from this ability, they can not do so again until they complete a short or long rest.
A hold-out blaster does 1d4 damage (+ your Dexterity bonus).