Push

When a melee attack is made against an NPC by a player or another NPC, the targeted NPC moves slightly in the direction that the pushing attacker is facing. The position of the attacker and receiver is irrelevant. In solo or small groups, melee push is usually irrelevant, but in raids it is a factor that must be managed closely by raid leaders. A mismanaged raid may quickly push a target to a disadvantageous or dangerous location.

Push, like knockback spells, also has a chance of interrupting a target's spells. It seems that the more distance an NPC is moved by push or knockback while they cast, the more likely they will be interrupted. Therefore, against NPCs who cast Complete Heal, Gate, or other dangerous spells, and especially against those who are also stun-immune, push is an important tactical resource.