Ursa

Ulfsaar the Ursa Warrior (or simply Ursa) is a melee agility hero whose abilities' main focus is the increase of autoattack 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 at up to maximum speed (400 IAS) and gain bonus damage with each consecutive hit on a single target. With these abilities—Overpower and Fury Swipes—Ursa can 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 other spellcasters on his team. Although an agility hero, Ursa's strength gain makes him very durable, and his ultimate allows his damage to scale by building strength items.

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 are useful for chasing down heroes while patrolling alone.
 * Earthshock is a relatively effective slow even without Blink Dagger, but regardless of the circumstance, initiation is best left to allies due to its short range. It is best used instead to prolong the time enemies are in range.
 * 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 melee range.
 * Given that because of Fury Swipes Ursa Warrior's damage consistently increases, as well as his incredible burst, on equal terms there are few heroes who can actually battle him alone. Consider making attack speed, and durability increasing items as due to his passive and ultimate Ursa does not really need damage items.
 * With proper management of tangos and salves, Ursa and Wraith King can kill Roshan at level 1. Beware, however that most veteran players are aware of this and it is a risky gamble that, if successful, will give your team a huge early game advantage. This tactic can also be achieved with Ursa and Io, 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 possible to activate it, wait a few seconds for the skill's cooldown to almost finish resetting, then go in and use up all of it's attacks and then immediately activate it again. This is often known as the Double Overpower and can stack up to 12 stacks of Fury Swipes at max level, effectively giving Ursa 360 bonus damage on the target. This technique is often used to farm Ancients at low levels, quickly kill off a durable enemy Hero, take out Roshan easily or even destroy the enemy fountain (in DotA 1) due to the fact that Vladimir's Offering and Overpower worked on it.

Trivia

 * Ulfsaar's alternate name was Fuzzy Wuzzy.
 * In Latin, the word "ursa" means bear, in portuguese it means female bear even though it's gender is not defined
 * Ursa's Fury Swipes may also be a reference to the Pokemon move of the same name.
 * In DotA, Ursa's ultimate would do damage at the start of his attack animation.
 * Ursa seems to harbor a vendetta against Roshan, according to his response to getting Vladmir's Offering.