Defensive Technique While Achilles is holding his spear, a creature that tries to move closer than 10 feet must make an INT or DEX (it's choice) saving throw or have it's movement reduced to 0 until the start of their next turn. Achilles can choose to allow a creature to move within this range without forcing them to make the saving throw.

Athlete When Achilles is prone, standing up uses only 5 feet of his movement.

Action Surge 1/day On his turn, Achilles can take one additional action on top of his regular action and a possible bonus action. 

Indominable 2/day When Achilles makes a saving throw and fails, he can reroll the die and take the higher result.

Multi-Attack Achilles makes 3 attacks.

Whirlwind Attack Once per turn, Achilles can replace an attack with a Whirlwind Attack, sacrificing -5 to hit, but attacking all targets withing range of the weapon he is holding.

Dory Melee Weapon Attack: +14 to hit, reach 10 ft., 1 target. Hit: 14 (1d8 + 9) piercing damage. If the target is within 5 feet of Achilles, he makes spear attacks at disadvantage.

Kopis Melee Weapon Attack: +13 to hit, reach 5 ft., 1 target. Hit: 12 (1d6 + 8) piercing damage.

Aegis Bash Melee Weapon Attack: +12 to hit, reach 5 ft., 1 target. Hit: 8 bludgeoning damage and the target must make a DC 20 STR saving throw or be knocked back 5 feet.

Dory Throw RangedWeapon Attack: +10 to hit, range 40/120 ft., 1 target. Hit: 9 (1d6 + 5) piercing damage.

Sauroter While Achilles is holding his spear, he can use a bonus action to attack using the bottom end. Melee Weapon Attack: +12 to hit, reach 10 ft., 1 target. Hit: 12 (1d4 + 9) piercing damage.

Second Wind 1/day Achilles regains 1d10+16 hit points.

Aegis Parry When Achilles is attacked with something that requires an attack roll, he can use a rection to parry with his Aegis, increasing his AC by +5 against the triggering attack.

Riposte When a creature makes a melee attack against Achilles and misses, he can use a reaction to make an attack against that enemy.