Hoplite - Shield Wall

You gain the following benefits:

• Spears gain the reach property for you.
• If you are wielding a spear, other creatures provoke an opportunity attack from you when they enter your reach.
• Your shield gives you a bonus +5 AC (3/4 cover) instead of +2 AC (half-cover) while standing within 5 feet of at least one of your allies wielding a shield and the ally isn't Incapacitated, or if at least one of your flanks is protected (ex. against a wall).