Homebrew:Kobold Engineer

(OOC: This is an implementation of the Kobold Engineer subclass from Tasha's Crucible of Everything Else volume 2)

Base Class: Artificer

Kobold engineers aren’t all kobolds, but many are. The practice was named after the most prominent practitioners, kobold inventors that specialize in devising madcap, improvised weapons and traps designed to distract enemies while their companions attack. These weapons often include odd chemicals and animals collected from nature or conjured from thin air.

Kobold Engineer Spells

3rd-level Kobold Engineer feature

You always have certain spells prepared after you reach particular levels in this class, as shown in the Kobold Engineer spells table. These spells count as artificer spells for you, but they don’t count against the number of artificer spells you prepare.

Kobold Engineer Spells

Artificer Level	Spells
3rd	find familiar, speak with animals
5th	darkness, find traps
9th	conjure animals, fireball
13th	greater invisibility, polymorph
17th	passwall, telekinesis

Bonus Proficiency

3rd-level Kobold Engineer feature

You gain proficiency in Animal HandlingWisdom (Animal Handling)skillWhen there is any question whether you can calm down a domesticated animal, keep a mount from getting spooked, or intuit an animal’s intentions, the DM might call for a Wisdom (Animal Handling) check. You also make a Wisdom (Animal Handling) check to control your mount when you attempt a risky maneuver..

Supply Bag

3rd-level Kobold Engineer feature

You have a magical bag that you can pull supplies for quickly improvised weapons and traps from. When you finish a long rest, you prepare a number of Improvised Attacks, described below, equal to half your level in this class (rounded up). You can choose which ones to prepare or roll 1d10 to determine randomly. You can use each prepared Improvised Attack three times, and you regain expended uses when you finish a long rest. You can also expend a spell slot of 1st level or higher to use an Improvised Attack that you have not prepared or that you have expended all uses for.

Improvised Attacks and creatures made by them use your spell attack bonus and spell save DC for their attacks and saving throw effects. Creatures conjured by these attacks have a number of hit points equal to your Intelligence modifier + the creature’s Constitution modifier + twice your level in this class. Such creatures use your spell save DC for their abilities that require saving throws.

Unless otherwise noted, Improvised Attacks can target creatures, objects, structures, and spaces, and require a ranged spell attack roll.

You can expend a spell slot of 1st level or higher to use an Improvised Attack of your choice.

Improvised Attacks

Angry Cat

As a bonus action, you toss an angry cat at a target of your choice within 15 feet. The creature must succeed on a Dexterity saving throw, or else take 1d6 slashing damage and have an angry cat on it. A creature with an angry cat on it is distracted, and attack rolls against it are made with advantage. A creature with an angry cat on it repeats this saving throw at the start of each of its turns, taking 1d6 on a failed save, or ending the effect on a success. The cat then disappears.

Basket of Centipedes

As a bonus action, you throw a wicker basket of centipedes onto a target within 20 feet. A swarm of insects (centipedes) emerges from the basket and rolls initiative, attacking any creatures that occupy its space. At the end of each of the swarm's turns, there's a 25% chance that the swarm and basket disappear.

Bear Trap

As a bonus action, you throw a bear trap at a target within 20 feet. On a hit, the creature takes 1d6 piercing damage, and its speed is halved until it regains at least 1 hit point. If the attack is a critical hit and it reduces a creature to 0 hit points, the creature is decapitated.

Green Slime

As a bonus action, you throw a pot of green slime at a target within 30 feet. On a hit, a target is covered in green slime and takes 1d6 acid damage, or 2d6 acid damage if it is a nonmagical object or structure made of wood or metal. A target covered in green slime takes this damage again at the start of each of its turns. Sunlight, any effect that cures disease, and any effect that deals cold, fire, or radiant damage destroys the green slime. A creature can also use its action to scrape green slime off of a target. The slime disappears after 1 minute.

Otyugh Bile

As a bonus action, you throw a vial of acid at a target of your choice within 30 feet. On a hit, the target takes 3d6 acid damage.

Sack of Frogs

As a bonus action, you throw a burlap sack of frogs at a target within 20 feet. A swarm of frogs emerges from the sack and rolls initiative, attacking any creatures that occupy its space. At the end of each of the swarm's turns, there's a 25% chance that the swarm disappears.

Scorpion on a Stick

As a bonus action, you pull a 10-foot-long pole out of your supply bag and make a melee spell attack with it at a creature within 10 feet of you. On a hit, the creature takes 1d6 poison damage and is poisoned for 1 minute. The creature can make a Constitution saving throw at the end of each of its turns, ending the effect on a success.

Skunk

As a bonus action, you pull a friendly skunk out of your bag and toss it into an unoccupied space within 15 feet. It rolls initiative. It is friendly to all creatures, has a speed of 15 feet, has no meaningful attacks, and always walks towards the nearest creature. At the end of each of its turns, there is a 50% chance it sprays a random adjacent creature. A sprayed creature makes a Constitution saving throw at the start of each of its turns. On a failed save, the creature spends its action on that turn retching and reeling. On a success, the effect ends. After 1 minute, the effect ends. Once the skunk has sprayed its musk, it disappears.

Smoke Bomb

As a bonus action, you throw a small packet of questionable contents at a space within 30 feet of you. Thick black smoke quietly erupts from that space, filling a 15-foot cube centered on that spot. The area of the smoke is heavily obscured. The smoke disappears after 1 minute or until a strong wind disperses it.

Wasp Nest

As a bonus action, you throw a nest of angry wasps at a target within 20 feet. A swarm of insects (wasps) emerges from the nest and rolls initiative. It always moves towards and attacks the nearest creature with more than 0 hit points remaining. At the end of each of the swarm's turns, there’s a 50% chance that the swarm and nest disappear.

Better Bag

5th-level Kobold Engineer feature

The initial damage of all of your Improvised Attacks increases by 1d6, and increases by another 1d6 again at 9th level.

Warrens Excavator

9th-level Kobold Engineer feature

You've discovered esoteric secrets of civil engineering magic. You gain a burrowing speed of 10 feet and can choose to leave a tunnel behind you that is just big enough to fit a creature of your size. This speed cannot be used to burrow through solid rock, ice, metal, wood, or similar substances.

Creatures one size larger than you can also fit in the area, but must squeeze to do so. While squeezing, such a creature's speed is halved, it has disadvantage on attack rolls and Dexterity saving throws, and attack rolls against it have advantage.

Look Over There!

15th-level Kobold Engineer feature

When you see a creature take the Dash, Dodge, Help, Hide, or Search action, you can use your reaction to take the same action or to use one of your prepared Improvised Attacks.