Sniper

Kardel Sharpeye the Sniper is a ranged agility hard carry who excels at dealing heavy damage at an incredible range. His third ability, Take Aim, allows him to deal high DPS at a safe distance, and avoiding damage as he is relatively frail. He also excels at harassing enemies due to his second ability, Headshot, which gives him a chance to do extra damage and mini-stun, and his first ability, Shrapnel, which slows and deals damage over time in an area. While he can be a nuisance to lane against, he is also extremely squishy early-game and requires supports to lane effectively. He scales extremely hard into the late game, dealing a remarkable amount of dps while sitting outside of harm's reach, almost permastunning heroes with his headshot. Though he is a rather frail hero, his potential in the hands of a good player and team is high.

Trivia
Incidentally, his voice actor, Gary Schwartz, also voices the Heavy Weapons Guy and Demoman in Team Fortress 2.
 * A number of Sniper's lines are either direct quotations or paraphrases of lines used by the Sniper class in Team Fortress 2, a popular class-based shooter also by Valve. Such phrases include:
 * snip_tf2_02.mp3 Thanks for standing still, wanker!
 * snip_tf2_05.mp3 Let's have a go at it!
 * snip_tf2_06.mp3 Professionals have standards.
 * snip_tf2_07.mp3 I'm polite and efficient.
 * snip_tf2_08.mp3 As long as there are two heroes left on the battlefield, someone is gonna want someone dead.
 * Sniper's line, " snip_kill_blade_04.mp3 Inconceivable!" is likely a reference to Vizzini's catchphrase in the film The Princess Bride due to the similarities in both the appearance and voices of the two.
 * Sniper's name in DotA, Kardel Sharpeye, is a reference to professional CounterStrike player Kyle "Ksharp" Miller of team 3D, who is regarded for his skillful AWP (Sniper rifle) use.
 * Sniper's ultimate, Assassinate, also uses the same, though slightly modified gunshot sound as CounterStrike's AWP.
 * Sniper's model in Dota 2 is based loosely off of Gary Oldman's portrayal of the real life sniper Lee Harvey Oswald in the 1991 film JFK
 * Sniper's fun name in DotA was, a highly skilled Russian sniper who was active during World War 2.
 * Sniper's line, " snip_kill_05.mp3 What a dum-dum!" is a pun on the, also known as a dum-dum. It is designed to expand on impact in order to limit penetration and create a wound larger in diameter.
 * Sniper's eye wear was added to Team Fortress 2 on the 18th August 2011 as Sniper's Snipin' Glass.