Crowd control
However, while Controllers and Dominators are designed to provide crowd control, all other archetypes have access to some crowd control effects; for instance, all Blasters have access to Immobilization effects in their secondary power sets. Crowd control in "City of Heroes" is generally very short in duration and not particularly effective on large groups of opponents or powerful opponents (such as Bosses, Archvillains, and Giant Monsters), in keeping with the game's design principles. This limitation is a function of "magnitude," which can be circumvented to a degree by using multiple crowd control effects or by augmenting magnitude using Domination. Because of these problems, crowd control is not considered an essential function in "City of Heroes", and many groups operate effectively without a Controller or any appreciable use of crowd control effects by simply overwhelming their opponents with massive force. In Issue 5, all crowd control was substantially weakened by reducing the duration and increasing the recharge of powers that offer it, especially if those powers could affect multiple targets. This has further deemphasized its role in gameplay.