You knock your opponent

You protect your mount as you ride.

While you are riding your mount, its Armor Class increases by an amount equal to half your proficiency bonus.

By closing your eyes and focusing on the sound of the environment, you target an unseen foe with uncanny accuracy.

Carefully judging the wind and everything else that might interfere, you unleash an impressive shot that delights all who see it.

With incredible swiftness you tear your weapon from its sheath and let fly a reckless attack.

With awe-inspiring skill you unleash a thrown weapon or arrow, knocking a missile out of the air.

When you see a missile from a ranged weapon attack enter into the normal range of a weapon you are wielding, you can use your reaction to deflect it. Use a weapon to make a ranged attack against an AC equal to the attack roll of the missile. On a hit, the missile is deflected and misses its target. 

At the Narrator’s discretion, certain ranged weapon attacks (like a giant’s thrown rock) may be too heavy to be deflected by Countershot.

With uncanny swiftness you ready a weapon normally only used at range, compensating for making an attack at an opponent within only a few feet and giving your enemies reason to be wary.

By arching your back and stretching your arms to their fullest extent, you make your ranged weaponry travel further than usual.

When you use a weapon to make a ranged attack, increase its normal range by 20 feet and long range by 50 feet.

You palm two blades or nock two arrows, launching both missiles at the same opponent.

The next ranged weapon attack you make uses two missiles instead of one. On a hit, you deal an additional weapon damage die.

Making haphazard shots to dissuade enemies, you force opponents onto the defensive by unleashing death from above so an ally can move into position.