Opportunist/4th

Improvement

When you reach 4th level and every three opportunist levels thereafter as shown in the opportunist table, your opportunistic competence evolves.  At each of these levels you gain one of the following benefits:

• Increase one ability score of your choice by 2, or two ability scores by 1 each. This cannot increase any ability score above 20 unless you have a feature that increases your ability score maximum.
• Gain a feat.
• Master another clever talent.
• Acquire 5 more proficiency points.

Each time you gain this feature, you can also replace one talent you already know with a new one of the same tier.

Uncanny Dodge

At 5th level, you learn to mitigate conventional attacks with abnormal grace. When an attacker that you can see hits you with an attack roll, you can use your reaction and expend 1 stamina point to halve the damage you take from that attack.

Flank

Also at 5th level, you learn to flank your enemies to deliver a precision blow. When you make an attack roll against a creature, you gain advantage on the roll if another enemy of the target is within 5 feet of it, and that enemy isn't incapacitated.

Once you use this feature, you cannot use it again until you next roll initiative or otherwise start combat.