Ursa

Ulfsaar the Ursa Warrior (or simply Ursa) is a melee agility hero whose abilities' main focus is the increase of attack damage, allowing for some of the most impressive sustained damage in the entire game.

He specializes in increasing damage against one target. His abilities allow him to attack with almost maximum speed and gain bonus damage with each consecutive hit on a single target. With the abilities Overpower and Fury Swipes, Ursa can often savage beefy targets for as much as 700 damage per hit. He is a ferocious jungler and straightforward attacker, able to solo even Roshan at low levels if he has lifesteal. Ursa is a carry who can snowball if he is farmed, but the array of anti-melee abilities existing even by the early game and his lack of any counterspells, especially to strong nukers and heroes with the ability to evade him make him a hero reliant on spellcasters on his team. Although an agility hero, Ursa's base strength and strength gain make him very durable.

Tips

 * One level in Fury Swipes and a Morbid Mask or any Lifesteal (Wraith King's Vampiric Aura works) allows Ursa Warrior to solo Roshan relatively early (as early as level 1 if the player gets lucky with Roshan's bashes).
 * As a hero with little natural capability to forcibly engage combat, speed items such as Phase Boots and Blink Dagger are useful for chasing down heroes while patrolling alone.
 * Earthshock is a fairly effective slow even without Blink Dagger, but regardless of the circumstance, initiation is best left to allies due to its small radius. It is best used instead to prolong the time enemies are in range of your attacks.
 * While used primarily for its slow, Earthshock has an extremely low cooldown and mana cost and, assuming you don't need to save mana for other abilities or items, can be spammed for additional area of effect damage; however, be wary of its long cast animation, as it may allow fleeing enemies to retreat out of the 385 radius.
 * With proper management of tangos and salves, Ursa and Wraith King can kill Roshan at level 1. To achieve this, level Fury Swipes on Ursa and Vampiric Aura on Wraith King and begin the fight using Wraith King to tank Roshan's damage. When Wraith King's health has dropped low pull him back while keeping him in Ursa's proximity and heal using a healing salve while Ursa continues the fight. By this time Ursa will have most likely stacked enough damage to be able to sustain against Roshan using Wraith King's Vampiric Aura unless of course you get unlucky with Roshan's bashes. If Ursa's health drops low due to repeated bashes, immediately switch tanking back to Wraith King. However, keep Ursa hitting Roshan. Remember that Ursa needs to keep up the stacks of Fury Swipes and that the debuff of this skill only lasts 6 seconds on Roshan so your strategy will fail or will be delayed greatly if the stacks wear off. Beware that most veteran players are aware of this and it is a gamble that, if successful, will give your team a huge early game advantage. This tactic can also be achieved with Ursa and Io using Tether and a few healing salves instead of Wraith King and Vampiric Aura, as well as many other heroes such as Lich and Treant Protector.
 * As Overpower has a 15 seconds duration and only 10 seconds cooldown, it's optimal to activate it, wait a few seconds for the skill's cooldown to almost finish resetting, then initiate and use up all of its attacks before immediately activating it again. This is often known as the Double Overpower and can stack up to 12 stacks of Fury Swipes on the target at max level. This technique is often used to farm Ancients at low levels, quickly kill off a durable enemy Hero, take out Roshan easily or in DotA 1 even destroy the enemy fountain due to the fact that Vladimir's Offering and Overpower worked on it.

Trivia

 * In DotA, Ulfsaar's alternate name was Fuzzy Wuzzy. This is referenced in one of his spawning lines, where he calls himself Ursa spawn 05.mp3 "Fuzzy Wuzzy". He does not use his actual name, Ulfsaar, in any of his responses. is the only one who calls him Ulfsaar.
 * In Latin, the word "ursa" means bear, in portuguese it means female bear, though it is heavily implied that his gender is male.
 * Ursa's Fury Swipes may also be a reference to the Pokémon move of the same name. The move involves the target being hit multiple times, much like Ursa's skills allow him to.
 * Ursa seems to harbor a vendetta against Roshan, according to his response to getting Vladmir's Offering.