Do you bleed?

Level 3 Fighter feat:

Do you bleed?

When you take the attack action with a weapon that enflicts slashing damage you can use your knowledge of attack strategy to cause the target of your attack to bleed.

If the attack hits the target takes 1d4 extra slashing damage when it is hit and at the start of each its following turns until it uses either an action to make a DC10 medicine check or regains atleast 5 hit points through any means.

If the attack has advantage replace the first 1d4 with 1d6.

If the attack is a critical success replace the first 1d4 with 1d10.

This feat can only be used