Area of effect

Area of effect (or AoE) is a term used in many role-playing and strategy games to describe attacks or spells that can affect multiple targets within a specified area.

Types of AoE
There exist a various amount of AoE champion abilities, summoner spells, and effect-granting items in the game and they can all be put in the following categories:

Chain
Some examples:, , , ,.

Cone
Some examples:, , , ,.

Ground targeted
With "ground targeted area of effect" ("GTAoE") abilities and spells, the player places a circle on the ground that will be the area of the effect. He carefully places this around his targets and clicks to start casting/channeling. All units that are in that area – or remain in that area for channeled or over-time GTAoEs – suffer the damage and/or effects.

Some examples:, , , , , ,.

Line
Some exampled:, , , , ,.

Point blank
Some AoE effects are cast or used without having to target someone or something; the caster is the anchor for the spell. The effect/damage radiates outward from the caster up to a given range, affecting all targets, or the first given number of targets, within the radius. These types of effects are referred to as "PBAoE", which stands for "point blank area of effect".

Some examples:, , , , , ,.

Single targeted
Some exampled:, , , ,.