Action points  

• You get a number of Action Points equal to your level.
• Actions Points refresh at each level.  Unspent Action Points are lost as the new total is gained.
• Only one Action Point may be added to a roll, and it must be done before consequences are revealed.  
• Most NPCs do not get Action Points, but significant NPCs may have Action Points to use against the player characters 
• You can spend 1 action point in a turn. If you spend a point to use a special action (see below), you can’t spend another one in the same turn to improve a die roll, and vice versa.
• You can spend 1 action point to roll 1d6 and add the number rolled to any attack roll, saving throw, or skill check.  
• Special Actions: A character can perform certain tasks by spending an action points:   
• Activate Class Ability: You can spend 1 action point to gain another use of a class ability that has a limited number of uses per day. For example, a fighter might spend an action point to gain another use of the Action Surge ability, or a druid might spend an action point to Wild Shape. 
• Boost Defense: You can spend 1 action point to force a target to attack you at disadvantage on its turn.  The use must precede the roll.   
• Advantage: You can spend 1 action point to make your next attack roll, saving throw, or skill check with advantage.  The use must precede the roll.  
• Negate Disadvantage: You can spend 1 action point to eliminate any disadvantage on your attack, saving throw, or skill check.  The use must precede the roll.  
• Improved Critical: You can spend 1 action point to increase your critical threat range by 1 for the entire round: from 20 to 19-20, from 19-20 to 18-20, etc. 
• Spell Focus:  You can spend 1 action point to force a single target to save at disadvantage against a spell you are casting.  The spell can be an area effect spell and only the single target is at disadvantage.  Others caught in the spell save normally.
• Stabilize: Any time you are dying, you can spend 1 action point to become stable.  The action point must be spent before the third death save is rolled.