Warlock Demonic Gateway Very Broken (Patreon)

The warlock ability Demonic Gateway is currently useable on virtually any mountainous terrain. Pre-8.0 and for most of wow history Demonic Gateway has had very severe restrictions on it making it almost impossible to use on any kind of elevated terrain.

For example, you can "gate" up and down warsong gulch graveyard, from flag room to roof, to the first floor on twin peaks, from the middle to the sides of the central area in Temple Of Kotmogu, and from ground to the high ledges/cliffs in Arathi Basin and Silvershard Mines. 

Sometimes the gateway bypasses terrain altogether. For example go to the right hands side of the night elf gate immediately outside the alliance base. You can place a gate that goes through the fence into the central area of the battleground with a little probing with the target reticle.

It is very easy to escape the confines of a battleground with the gate in carry-the-flag battlegrounds.

You do not need to talent the gateway, unless you want the full 60 yard range, though the reduced cooldown is helpful.

This is a very fun and powerful trick allowing the player to instantly escape from any combat situation spectacularly. 

A more minor but still interesting bug: using Grimoire Of Sacrifice counts towards Killing Blows on the scorecard and allows you to attain related achievements easily.