Junkrat by varkarrus

Level 1:

Live Bomber: Concussive Mine can be cast on allied mercenaries and minions, turning them into a bomb. Detonation does not harm the minion. If the minion is killed, the mine drops to the ground.

Fireworks: Provides vision of a nearby area. 12 second CD.

Controlled Detonation: Concussive Mine deals 200% bonus damage to structures, and destroys 3 ammo.

Level 4:

Watch Them Fly: Damaging an enemy minion with Concussive Mine heals you for 4% of your max HP over 5 seconds.

Bigger Boom: Concussive Mine has 50% increased radius, and 10% increased damage.

God of Explosions: Damaging an enemy hero with any ability grants 0.25% ability power. At 10% bonus ability power, gain an additional 10% bonus.

Level 7:

Whee!: Launching yourself with Concussive Mine increases your basic attack speed and range by 50% for 5 seconds.

Nitro Boost: Parting Gift's movement speed bonus is now 50%

Spotter: Basic Attack range increased by 10%, and all traps grant vision.

Level 10:

Rip Tire

The Big One

Level 13:

Explosive Trap: Bear Trap explodes for 75% bonus damage in an area once the root ends.

Bear Trap: Steel Trap stuns the target instead.

More Explosions: Parting Gift creates 3 more bombs that explode after a 1.5 second delay.

Level 16:

Sneak Away: Casting Parting Gift while in a bush gives you stealth for 4 seconds.

Trap Master: Steel Trap gains a second charge, and you can have two at once.

Loose Pockets: After falling below 50% health, cast a fully talented Parting Gift regardless of it's CD. This effect has a 30 second CD.

Level 20:

Sneaky Tire: Rip Tire is no longer announced to enemies, and it explodes if destroyed.

Trap Defense: Casting Steel Trap near The Big One refreshes the CD, and refunds 80% of the mana. Up to 5 of the Steel Traps near The Big One don't count towards the maximum.

Explosive Fury: Concussive Mine has a secondary explosion that deals 400 damage to minions and mercenaries in a twice as large area.

Absolute Madman: Parting Gift's duration increased by 1.5 seconds, and you are unstoppable while it's active.