You gain access to the following spells at the specified levels. You always have them prepared, and they do not count against the number of spells you can prepare:

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.

Your combat training and your experiments with magic have paid off in 2 ways. You gain proficiency with martial weapons. Additionally, when you attack with a magic weapon, you may use your INT, instead of STR or DEX, for the attack and damage rolls.

Your tinkering has borne you a faithful companion, a steel defender. It's friendly to you and your companions, and it obeys your commands. See its game statistics in the Steel Defender stat block, which uses your proficiency bonus in severel place. You determine the creature's appearance and whether it has 2 legs or 4; your choice has no effect on its game statistics. In combat, the defender shares your initiative count, but it takes its turn immediately after yours. It can move and use its reaction on its own, but the only action it takes on its turn is the dodge action, unless you take a bonus action on your turn to command it to take another action. That action can be one in its stat block or some other action. If you are incapacitated, the defender can take any action of its choice, not just dodge. If the mending spell is cast on it, it regains 2d6 hitpoints. If it has died within the last hour, you may use your smith's tools and a 1st level spell slot as an action to revive it, provided you are within 5ft. of it. The steel defender returns to life after 1 minute, with all its hitpoints restored. At the end of a long rest, you may create a new steel defender if you have smith's tools with you. If you already have a defender from this feature, the first one immediately perishes. The defender also perishes if you die.

You may attack twice instead of once whenever you take the attack action on your turn.

You've learnt new ways to channel arcane energy to harm or heal. When either you hit a target with a magic weapon attack, or your steel defender hits a target, you may channel magical energy through the strike to create one of the following effects. You may use this energy a number of times equal to your INT (minimum of 1) per long rest, but no more than once per turn.

• The target takes an extra 2d6 force damage.

• Choose one creature or object you can see within 30ft. of the target. Healing energy flows into the chosen recipient, restoring 2d6 hitpoints to it.

Your arcane jolt feature and steel defender become more powerful:

• The extra damage and the healing of your arcane jolt feature both increase to 4d6.

• Your steel defender gains a +2 bonus to AC.

• Whenever your steel defender uses its deflect attack, the attacker takes force damage equal to 1d4 + your INT.