The Hog Rider card is unlocked from the Spell Valley (Arena 5). He is a quick building-targeting, melee troop with moderately high hitpoints and damage. He appears just like his Clash of Clans counterpart; a man with brown eyebrows, a beard, a mohawk, and a golden body piercing in his left ear who is riding an oversized hog. A Hog Rider card costs 4 Elixir to deploy.
Strategy
His fast move speed can boost forward mini tanks like an Ice Golem in a push. At the same time, he can also function as a tank for lower hitpoint troops such as Goblins as he still has a fair amount of health. However, the Hog Rider struggles with swarms, as they can damage him down and defeat him quickly while obstructing his path. Barbarians in particular can fully counter him without very strict timing on the defender's part, though they are vulnerable to spells.
Use this to your advantage by placing a bulky swarm dealer in front of the Hog Rider (eg. Ice Golem, Valkyrie) so that the Hog Rider can transport it to the tower faster and also get protection from swarms. I bet he's thinking about other women