Combat Crosses the Wire
Attacking, casting and interacting now reach the server. Online, the game was a walking simulator.
Choosing a target used to happen only on your own machine: the server never heard about the attack, and the damage was refused. Skills and interaction had the same fate — the lever in the Anubis room among them.
Now the three intentions travel to the server, which owns the real body: it decides the damage, the mana and the cooldown. Your screen still lights the target up the instant you click, because a highlight is drawing, and drawing can be immediate.