Seismic Slam

Seismic Slam is a Secondary skill, and one of the three that may be described as ranged skills.

In-game
The Barbarian lifts up one foot and brings it down with his/her weapon, slamming them into the ground and sending forth a deadly shockwave. This wave expands in a cone, roughly 30 degrees wide and 50 yards long, moving quickly (but not instantly), expanding as it nears its full length.

The wave has a minimum width (10 yards) at close distance, and ignores line of sight and most obstacles, including Waller affix barriers.

Skill Runes

 * Stagger: damage type changes to Lightning and reduces Fury cost to 22.
 * Shattered Ground: damage type changes to Fire, damage increases to 735%, and enemies hit are knocked up in the air for a moment.
 * Rumble: area of effect also pulses with shockwaves for 2 seconds, dealing 115% damage per second to enemies remaining within it. In addition to base Fury cost, consumes all remaining Fury and increases the damage over time by 15% weapon damage as Physical for every point of Fury spent. This Fury consumption is unaffected by resource cost reduction.
 * Strength from Earth: the Barbarian also heals 1% of maximum Life for every enemy hit by Seismic Slam.
 * Permafrost: damage type changes to Cold, increases damage to 755% and Chills affected enemies by 60% for 1 second.

Non-rune enhancements

 * Fury of the Vanished Peak (Legendary Two-Handed Mighty Weapon): reduces Fury cost by 50% and increases damage by 400-500%.
 * Bracers of Destruction (Legendary Bracers): increases damage done to the first 10 enemies hit by 400-500%.
 * Girdle of Giants (Legendary Mighty Belt): Seismic Slam increases Earthquake damage by 200–250% for 3 seconds.
 * Fjord Cutter (Legendary Mighty Weapon): Seismic Slam attacks 50% faster and also deals 100-150% increased damage against Slowed or Chilled enemies.
 * Might of the Earth Set (Set Bonus for 6 items): increases damage by 20000%.

Passives

 * No Escape: Seismic Slam deals more damage to enemies at least  yards away from the Barbarian.

Development
Seismic Slam was one of the more difficult skills to develop, as it was the first effects-heavy ability, and involved ground effects. Originally, the terrain would break apart after it was used.

Upheaval in Diablo IV fills the same fantasy niche.