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It became a main focus of the TvX Heart of the Swarm meta-game due to the absurdly high health and damage value for its cost. Ironically, this is the one unit it is not economical against. This was intended to allow it to be competent against Siege Tank lines. By the release of the beta for the expansion, however, developers ended up opting for an anti-ground unit with bonus damage against Mechanical units with Haywire Missiles. When Heart of the Swarm was first unveiled to the public, the Warhound was emphasised as the replacement for the Thor, having the same splash damage attack versus air units and a heavy burst attack, ideal against armored units and kite micro. Having high health, range, burst damage, and speed this unit was supposed to be effective at "Hit and Run" tactics, so long as it is not destroyed before coming into another unit's range. Originally planned as the spiritual successor to the StarCraft Goliath and the Thor's replacement, it was fashioned as a ground-attack only anti-mechanical unit by the Heart of the Swarm beta. The Warhound was intended to be one of the new Mechanical units from the Factory.
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