Gambler

This class allows the player to essentially weight their dice to get better rolls and sometimes even give others worse rolls, basically you pick this subclass if you have terrible luck but don't want to be a halfling or take the lucky feat

Bonus Proficiencies

When you select this subclass at level 3, You gain proficiency in a chosen type of Gaming Set and advantage in all insight checks used to tell what people are doing in your chosen game (I.E. cheating, bluffing, not bluffing)

Ante Up

When selecting this class at level 3, you gain the ability to roll 1d4 as a bonus action, the number rolled is added to all damage you deal and take for the rest of the round. The die used for this ability increases as you level up, being 1d4 at level 3, 1d6 at level 9, 1d8 at level 13, and 1d10 at level 17. This ability may be used an amount of times equal to your proficiency bonus plus your Charisma Modifier (minimum of 0)

Hit or Stand

When you reach level 9, you gain the ability to reroll the damage dealt on a weapon attack and add it to the origionally rolled amount as a reaction. However, if the combined amount is higher than the maximum damage the given weapon's dice could roll, you miss the attack that would've otherwise hit.

Weighted Dice

Upon reaching level 13, you gain the ability to call a die used for an attack roll, saving throw, or an ability check as even or odd before rolling. If you fail the roll but guessed even or odd correctly, you reroll the die. This ability can not be used more than once on the same check and has an amount of uses equal to your charisma modifier with a minimum of one.

Dead Man's Roulette

Upon reaching level 17, when you are on 0 HP on your turn, you can roll 1d6, if you roll higher than a 1 you return to combat with as many HP as you rolled on the die minus 1 plus your Charisma Modifier, if you roll a 1 or lower, you die instantly. Every time you use this ability, you gain a -1 Modifier to the die rolled for this ability and to all death saving throws you make until you take a long rest.