Opportunity Sense

You've trained to withstand the fast paced combat and gained following features:

• Solid Ground: If you haven't moved and not used a bonus action in your last turn, you're able to perform up to 2 opportunity attacks, as part of one reaction, until your next turn.
  E.g. You've taken the reaction with one opportunity attack, so you can perform another opportunity attack, when triggered seperately, but cannot use other abilities that are requiring a reaction until your next turn.
• In or Out: You can also make opportunity attacks, if an enemy steps within 5ft range of you.
• Shared Techniques: You can use your reaction to help an ally withing 10ft of you to make an opportunity attack, only if they doesn't have this feat, giving them advantage on that attack.
• Follow Step: After making an opportunity attack, you can follow the target of that attack, if it chooses to move further away, to still use the Solid Ground feature on that target and make a 2nd opportunity attack. This feature can only be used, if you had movement speed left on your last turn. As part of this feature you step in the field of the targets "first opportunity attack"-position, not provoking opportunity attacks from other creatures.
  You can use this feature equal to your proficiency modifier and again after the next short or long rest.