Battle Smith Artificer

Artificer Level Battle Smith Spells
3rd Heroism, Shield
5th Branding Smite, Warding Bond
9th Aura of Vitality, Conjure Barrage
13th Aura of Purity, Fire Shield
17th Banishing Smite, Mass Cure Wounds

Level Feature Name Description
3rd Tool Proficiency When you adopt this specialization at 3rd level, you gain proficiency with smith's tools. If you already have this proficiency, you gain proficiency with one other type of artisan's tools of your choice.
3rd Battle Ready When you reach 3rd level, your combat training and your experiments with magic have paid off in two ways: You gain proficiency with martial weapons, and when you attack with a magic weapon, you can use your Intelligence modifier, instead of Strength or Dexterity, for the attack and damage rolls.
3rd Steel Defender By 3rd level, your tinkering has borne you a faithful companion, a steel defender. It shares your initiative count but takes its turn immediately after yours. The defender obeys your commands and can take the Dodge action unless commanded otherwise. If it dies, you can revive it with smith's tools and a spell slot.
5th Extra Attack Starting at 5th level, you can attack twice, rather than once, whenever you take the Attack action on your turn.
9th Arcane Jolt At 9th level, when you or your steel defender hits a target, you can channel magical energy to deal 2d6 extra force damage or restore 2d6 hit points to a creature or object within 30 feet. You can use this ability a number of times equal to your Intelligence modifier (minimum of once) per long rest.
15th Improved Defender At 15th level, your Arcane Jolt and steel defender improve. The extra damage and healing from Arcane Jolt increase to 4d6, and your steel defender gains a +2 bonus to Armor Class. When it uses Deflect Attack, the attacker takes force damage equal to 1d4 + your Intelligence modifier.

Steel Defender Details
Type Medium construct
Armor Class 15 (natural armor)
Hit Points 2 + your Intelligence modifier + 5 times your artificer level (the defender has a number of Hit Dice [d8s] equal to your artificer level)
Speed 40 ft.
STR 14 (+2)
DEX 12 (+1)
CON 14 (+2)
INT 4 (−3)
WIS 10 (+0)
CHA 6 (−2)
Saving Throws Dex +1 plus PB, Con +2 plus PB
Skills Athletics +2 plus PB, Perception +0 plus PB x 2
Damage Immunities poison
Condition Immunities charmed, exhaustion, poisoned
Senses darkvision 60 ft., passive Perception 10 + (PB x 2)
Languages understands the languages you speak
Challenge
Proficiency Bonus (PB) equals your bonus
Vigilant The defender can't be surprised.
Actions Force-Empowered Rend: Melee Weapon Attack: your spell attack modifier to hit, reach 5 ft., one target you can see. Hit: 1d8 + PB force damage.
Repair (3/Day): The magical mechanisms inside the defender restore 2d8 + PB hit points to itself or to one construct or object within 5 feet of it.
Reactions Deflect Attack: The defender imposes disadvantage on the attack roll of one creature it can see that is within 5 feet of it, provided the attack roll is against a creature other than the defender.