Bashar, Warrior Sidekick

Hold Breath. Bashar can hold her breath for 15 minutes.

Martial Role. 
1st-level Warrior feature
Each warrior focuses on offense or defense in their training. Choose one of the following options: 
Attacker. The sidekick gains a +2 bonus to all attack rolls.

Bonus Proficiencies.
1st-level Warrior feature
The sidekick gains proficiency in one saving throw of your choice: Strength, Dexterity, or Constitution. In addition, the sidekick gains proficiency in two skills of your choice from the following list: Acrobatics, Animal Handling, Athletics, Intimidation, Nature, Perception, and Survival.

The sidekick gains proficiency with all armor, and if they are a humanoid or have a simple or martial weapon in its stat block, gain proficiency with shields and all simple and martial weapons.

Ability Score Improvements.
At 4th level and again at 8th, 12th, 14th, 16th, and 19th level, the sidekick increases one ability score of your choice by 2, or the sidekick increases two ability scores of your choice by 1. The sidekick can't increase an ability score above 20 using this feature.

 Longsword Melee Weapon Attack: +9 to hit, reach 5 ft., one target. Hit: 5 (1d8+ 3) slashing damage.

Javelin. Melee or Ranged Weapon Attack: +9 to hit, reach 5 ft. or range 30/120 ft., one target. Hit: 5 (1d6 + 3) piercing damage.

Second Wind
2nd-level Warrior feature
The sidekick can use a bonus action on its turn to regain hit points equal to 1d10 + its level in this class. Once it uses this feature, it must finish a short or long rest before it can use it again.

Improved Critical
3rd-level Warrior feature
The sidekick's attack rolls score a critical hit on a roll of 19 or 20 on the d20.

Extra Attack 
6th-level Warrior feature
The sidekick can attack twice, instead of once, whenever it takes the Attack action on its turn. The number of attacks increases to three when the sidekick reaches 15th level. If the sidekick has the Multiattack action, it can use Extra Attack or Multiattack on a turn, not both.

Battle Readiness
7th-level Warrior feature
The sidekick has advantage on initiative rolls.