Houndoom

Mega Houndoom is one of the more lesser used Mega Evolutions in the Battle Spot metagame because there are much more reliable ones, such as Mega Kangaskhan and Mega Salamence. As a fast special attacker, it's also outclassed by Mega Charizard Y, although its base 115 Speed and access to Nasty Plot give it a niche. Mega Houndoom is able to act as an excellent wallbreaker on offensive teams due to its powerful Special Attack, tearing down walls such as Mega Sableye, Cresselia, Ferrothorn, Zapdos, and Gliscor. It also has a nice Dark / Fire typing, which lets it take on various threats in the metagame such as Mega Metagross, Mega Gengar, Mega Mawile, and Aegislash. Even though it has a nice set of resistances, its typing leaves it weak to Rock-, Water-, Ground-, and Fighting-type moves. Thanks to Solar Power, Mega Houndoom functions very well under sun, whether it comes from a teammate or from the opponent's Mega Charizard Y; however, the ability also makes it lose 1/8 of its HP every turn. Mega Houndoom has a nice movepool with options such as such as Will-O-Wisp, Taunt, Pursuit, and Sucker Punch, providing support, utility, and a way to pick off foes that switch and foes that attack, respectively. However, Mega Houndoom's mediocre bulk makes it easy for foes to KO it, especially for faster Pokemon and priority attackers such as Mega Salamence, Mega Lopunny, Mega Kangaskhan, Mega Blaziken, Azumarill, and Conkeldurr.