Gladiator

Gladiators are fighters that seek the thrill of combat and seek to bathe in the blood of enemies they slay. They seek out not just any opponent but the largest, strongest, or most ruthless and they slay them to take their place only getting stronger the stronger their enemy is.

Gained Proficiency

At 3rd level you gain proficiency in Improvised Weapons.

Gladiator’s Blood Lust

At 3rd level you gain a 1d4 to your melee weapon damage due to your wanting for blood and others’ entertainment through your carnage. So you would want to give them a show, right? You can use this ability once per turn.
At 7th level it changes to 1d6, at 10th level it changes to 1d8, at 15th level it changes to 1d10, at 18th it changes to 1d12.

Face Me

At 3rd level you present yourself as a challenge in which enemies would not easily ignore. When you damage a creature with a melee attack you can mark the creature which gives you advantage on attack rolls against the creature, and the creature has disadvantage on attack rolls against all creatures except for you. This can be used every turn of combat and ends at the end of your next turn, but it ends early if another creature is marked, or you are incapacitated. You cannot target a creature that is already marked. In addition, every time you damage a creature to discern and access the state of the creature. you gain advantage on Insight to discern the state of the creature you damaged.

Level 7: No Fear

At 7th level you begin to not care how strong or frightening a creature can be and you are immune to all fear effects.

Finally, A Worthy Opponent

At 10th level when you roll initiative, you may choose one enemy who is a larger size than you. Until the end of combat, whenever you take the Attack action against them, you gain an extra attack.

Are You Not Entertained?!?

At 15th level when you kill a creature that is larger than yourself, all allies that can see you and the creature you killed gain 1 inspiration due to seeing you slay such a mighty foe. The inspiration can only be gained once before you have to complete a long rest.

WITNESS ME!!!!!

At 18th level when you fall to 0 hit points you gain a free action to do an attack dealing 12d12 damage as a final attack before your death. Instead, if your DM and party are ok with it when you do it you can yell “Witness Me!!!!” and for every party member that says “Witness!!!!” you gain 3d12 damage instead. You regain half of your hit points if you would like. To do this again you must take a Long Rest.