Beetle Vurkson

Ballistic Plating (Grenadier).
After a short or long rest, Beetle creates ceramic armor plates. He gains 10 temporary hit points and +1 AC until they're depleted or removed.

Goblin Agility.
Beetle can take the Disengage or Hide action as a bonus action on each of his turns.

Tinkerer’s Instincts.
Tinker's Tools +7 Beetle can create minor magical or mechanical effects (clockwork alarms, light sources, minor traps) during short rests. These last 1 hour.

Scrap Shield (Recharge 5–6).
When Beetle is hit with an attack, he can reduce the damage by 10 (1d10 + 5) and push the attacker 5 feet away

Wrench Whack

Melee Weapon Attack: +4 to hit, reach 5 ft., one target.
Hit: 6 (1d8 + 2) bludgeoning damage.
If the attack is a critical hit, the target has disadvantage on its next attack roll.

Grenade Satchel (3/Day)

Beetle throws an arcane grenade crafted from his artificer satchel. Each grenade affects a 5-ft radius (Dexterity save DC 14).

Force Grenade: 1d10 force damage. Half damage on success.
Fire Grenade: 2d6 fire damage. Failed saves ignite the target.
Shock Grenade: 1d8 lightning damage. Failed saves lose reactions until the end of their next turn.

Range: 60 ft. | Area: 5-ft radius | Save: Dex DC 14

Arcane Bolt (Cantrip)

Ranged Spell Attack: +6 to hit, range 60 ft., one target.
Hit: 8 (2d4 + 3) force damage.

Overclock Grenade (Recharge 5–6).
Before throwing a grenade, Beetle may overclock it to increase its radius to 10 ft. and add +2 damage to the total.