Your ability to smell is superior to that of a pigs even. You have proficiency in wisdom (perception checks).

Bokoblins have strong digestive systems. You cannot be poisoned have a disease or be harmed by salmonella.

Level 1: Red Bokoblin - Reckless Fury

Your first transformation reflects the wild aggression of a Red Bokoblin.

Feature: You can choose to fight recklessly, throwing caution to the wind. When you make a melee weapon attack, you can choose to have advantage on the attack roll. If you do so, attack rolls against you also have advantage until the start of your next turn.

Bonus: You gain proficiency in improvised weapons and can use them as if they were martial weapons.

Level 6: Blue Bokoblin - Sturdy Frame

Your transformation into a Blue Bokoblin grants you increased resilience and strength.

Feature: Your hit point maximum increases by an amount equal to your level, and whenever you take damage, you can reduce it by an amount equal to your proficiency bonus (once per round).

Bonus: You count as one size larger for the purposes of carrying capacity and pushing, pulling, or lifting objects.

Level 10: Black Bokoblin - Brutal Savagery

As a Black Bokoblin, you become a fearsome warrior capable of overwhelming foes with raw power.

Feature: Once per turn when you hit with a melee weapon attack, you can deal an additional 1d6 damage. This increases to 2d6 if you have fewer than half your hit points remaining.

Bonus: You gain advantage on saving throws against being frightened or charmed.

Level 14: Silver Bokoblin - Cunning Predator

Silver Bokoblins are known for their clever tactics and adaptability. You embody this cunning in battle.

Feature: You can take the Disengage or Dash action as a bonus action. Additionally, when you take the Help action during combat, the creature you aid gains a bonus to their attack roll or ability check equal to your proficiency bonus.

Bonus: You gain proficiency in two skills of your choice from Stealth, Survival, and Perception.

Level 18: Golden Bokoblin - Unstoppable Champion

You ascend to the pinnacle of Bokoblin power, becoming a Golden Bokoblin feared for your endurance and might.

Feature: At the start of your turn, if you have fewer than half your hit points remaining, you regain hit points equal to your Constitution modifier + your proficiency bonus.

Bonus: You gain resistance to bludgeoning, piercing, and slashing damage from nonmagical attacks. Additionally, critical hits against you are treated as normal hits.

You retain each feature from previous colors, and can choose to use any of the avaliable ones a number of times equal to your proficiency bonus.