Tinker

Boush the Tinker is a ranged intelligence Hero who relies heavily on his assortment of nukes for ganking and pushing. While he does have rather low stat gain, he is able to reset the cooldown on his abilities, which in conjunction with Boots of Travel gives Tinker global mobility rivaled only by Nature's Prophet, which combined with his two high damage nukes, Laser & Heat-Seeking Missile make him a constant threat. Tinker abilities' mana costs are very high, however thanks to his ultimate Rearm, and Boots of Travel, Tinker can simply to go back to base to refill health and mana, Rearm and go back to the lane to push or gank once more. Acquiring said boots early with a level advantage is key to success, considering he is lackluster without them. With the right item, mana management, and ability management, there is little that stands in the way of this spamming hero.

Tips

 * is an extremely powerful nuke that ignores magic resistance due to being a pure damage spell. Use it as primary source of damage.
 * has an extremely long range. With Rearm, you can continuously spam missiles as to harass enemy heroes and wear them down in preparation of a fight.
 * is a perfect farming and anti-push tool, as enemies cannot avoid the damage if they wish to attack anything in the affected area. You can overlap several March of the Machines using Rearm to deal massive area of effect damage.
 * is Tinker's key ability, since it turns him into a global, powerful pushing and defense machine in conjunction with Boots of Travel.
 * is the item which defines Tinker's unique play style due to Rearm refreshing its cooldown, as this enables him to freely teleport to any tower, creep or summoned unit, allowing him to jump into the fray anywhere, and then return to his team's fountain to regenerate.
 * You should always start with a point in Laser, as the Blind effect (100% miss chance on target) makes it hard for the enemy to last hit creeps. It also provides minor harass and can be used to secure difficult last-hits.
 * In the early game, saving up the gold for Boots of Travel is your top priority (after an optional Bottle or Soul Ring), since it's the point at which the hero truly "comes online". Observe the game and enemy line-up to determine whether you do this by staying in the lane to farm, or ganking to secure kills.
 * and are both vital items to prolong the time you spend away from the fountain, and the latter should definitely be picked up before or after Boots of Travel, as the 150 mana boost per Rearm essentially makes up for Rearm's mana cost at level 1.
 * You can stack commands by holding Shift (also called Shift-queuing) to prevent unintentional Rearm interruptions. Tinker will perform stacked commands right after finishing Rearm.
 * Pick up a positioning item such as or  after Boots of Travel to counter smart opponents predicting your teleports and ambushing you on the lane. Shift-queuing Blink Dagger after teleporting allows you to safely cast March of the Machines from the trees without fear of retaliation, making potential ganks harder.
 * March of the Machines deals Universal damage, which goes through magic immunity and damages ancients as well as siege creeps.
 * There are several locations where intelligently-placed March of the Machines can considerably improve your farm.
 * You may choose to free up the lane to another hero and focus on stacking and farming your faction's ancient camp. This, however, requires strict execution to remain competitive with a mid laner.
 * A mid-laning Radiant Tinker may stack the easily accessible ancient camp every minute to gain considerable bonus income in the laning phase with a March-focused build.
 * On Dire, Tinker can aim the ability on the trees to the right side of their ancient camp to defend his off-lane tower and farm the ancients at the same time.
 * Also on Dire, a well-placed March of the Machines can cover the two eastern-most camps in the jungle. Both camps can be simultaneously stacked by timing this correctly.
 * Tinker is an extremely mana-hungry hero. Plan your ability and item use to avoid excessive use of Rearm.
 * Rearm is typically kept at Level 1 until Tinker's mana pool can reliably handle the higher levels' raised mana cost.
 * Always keep enough mana handy to escape and teleport back to the fountain, as Tinker is a very squishy and vulnerable hero when caught out in the open.
 * Your global presence allows you to assist in fights when needed. 3 points in Laser and Heat-Seeking Missile are recommended before doing so.
 * A Scythe of Vyse pick-up allows Tinker to keep a target disabled until his mana runs out. A rotation of Hex - Heat-Seeking Missile - Laser - Rearm - Hex - etc. is a solid option for decimating an enemy target. As always, avoid stacking disables on top of each other.
 * and result in yet another combo which focuses on stronger burst damage output, with the Ether Blast's 40% magic vulnerability debuff amplifying the impact of Dagon and Tinker's abilities. Few heroes in the game can withstand a rotation of Heat-Seeking Missile - Ethereal Blade - Laser - Dagon - Rearm - Ethereal Blade - etc.
 * is situational pick-up for teams threatened by robust auto-attackers such as Ursa and Huskar, allowing you to disable their auto-attack for 6-6.5 seconds per Rearm between the Halberd's Disarm and your Laser.
 * Carefully decide where to push with March of the Machines. Careless pushing will result in your own carries being unable to find farm, while enemies are allowed to farm close to their towers. If pushing out, try to actively siege towers.
 * If enemy creeps push close to your tower, but the lane is not actively threatened, it's usually a better idea to let your carry farm there before you push the front line back to the enemy.

Trivia

 * The Tinker's voice actor, Harry "Hal" Robins, also voiced Dr. Isaac Kleiner in Half-Life 2 and the scientists of Black Mesa in Half-Life. Many of Tinker's voice lines reference characters and events from the Half-Life universe. In addition, the name "Violet Plateau" is quite similar to "Black Mesa," and the events described in Tinker's backstory are remarkably similar to the events of Half-Life.
 * The Tinker's alternate/fun name in DotA was "X!!", name of a professional DotA player.
 * Tinker's line "I tink! Therefore I am!" is a reference to the philosophical statement "I think, therefore I am." proposed by René Descartes. Its original Latin words are "Cogito ergo sum."
 * Tinker's line "Tinker, failure…Soldier…Fie…" is a reference to the 1974 spy novel Tinker, Tailor, Soldier, Spy by British author John le Carré about George Smiley (who was played by Gary Oldman in the 2011 film adaptation).