Harrison Jones

Harrison Jones is an archaeologist and explorer from the Warcraft franchise. His name is a reference to actor Harrison Ford and one of his most famous roles, Indiana Jones.

Tomb of the Spider Queen
In the Tomb of the Spider Queen, an artifact can be found on a pedestal west of the boss mercenary. Clicking on it five times causes Harrison to descend into the tomb on a rope. He will lift and examine the artifact, strap it onto his back, climb up the pedestal, then grab and climb a rope to escape.

If a player does this, Harrison will reappear at the end of the match. Hanging from a rope next to the exploding core, he tips his hat before heading back up.

Sky Temple
In the Sky Temple battleground, a well with a stone lid can be found south of the boss mercenary. Clicking on it five times causes the lid to break and allows Harrison to climb out, carrying the artifact he discovered in the tomb. He then jumps onto a flying carpet and escapes, just before a pair of large spider legs reach out of the well in an attempt to capture him.

If a player does this, Harrison will reappear at the end of the match. Riding on his flying carpet, he will circle the exploding core before flying off.

Trivia

 * The 8/18/2015 patch reduced the number of clicks needed to make Harrison appear, from 10 to 5.