The Rift comes to you
Rift enemies engage as soon as you enter, bringing the fight to you and your party.
Creatures and the guardian now pursue you from anywhere in the Rift room. You no longer need to cross the arena to wake distant enemies, whether you fight manually or use Auto.
Enemies still need to reach their normal attack range. Their health, damage and rewards are unchanged. The overworld and ordinary dungeons keep their existing aggression rules.
Expect the room to converge on your position sooner. Prepare your build and party before entering.