Homebrew
Brave. The gladiator has advantage on saving throws against being frightened.
Multiattack. The gladiator makes three melee weapon attacks. It can replace one attack with a use of Shield Bash.
Falx. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 13 (2d8 + 4) slashing damage, or 15 (2d10 + 4) slashing damage if used with two hands to make an attack.
Shield Bash. Strength Saving Throw: DC 15, one creature within 5 feet that the gladiator can see. Failure: 9 (2d4 + 4) Bludgeoning damage. If the target is a Medium or smaller creature, it has the Prone condition.
Hooked Hamstring. Once per turn, if the gladiator hits a creature with its falx, it forces the target to make a DC 15 Dexterity saving throw. On a Failure: The target's speed is reduced by 15'.
Any Climate; Any Terrain