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The Ultimate is the fourth ability of most Champions. The ultimate is considered a champion's defining ability and is oftentimes considered their strongest. Ultimates vary greatly between champions, with some having passive effects ( Jax's  Grandmaster's Might), some having global effects ( Karthus's  Requiem), some being spammable from having low cooldowns ( Kassadin's  Riftwalk), some being auras ( Sivir's  On The Hunt) and some summoning other units ( Annie's  Summon Tibbers). Whether an ultimate is considered a champion's strongest ability or not, using your ultimate effectively is crucial to playing any champion. Ultimates are defined by being able to be taken at levels 6, 11, and 16.

It is also possible to tell whether or not an allied Champion's ultimate is ready or not, by the indicator. The indicator is the green dot which is placed right beside the respective champion's portrait on the left side of your screen. When the green light is on, the champion's ultimate is ready. If the light is off, the champion has either not learned the ability or it is currently on cooldown.

There is currently only one champion that doesn't have an Ultimate: Udyr. He has four Stances that are all trainable up to level 5. Elise's  Spider Form/ Human Form, Jayce's  Mercury Hammer/ Mercury Cannon, and Karma's  Mantra are all available at level 1 for the respective champion, but can still be leveled up at level 6, 11 and 16, making them special in having 4 ranks.

Global UltimatesEdit

Some champion ultimates have an unlimited, global range, allowing them to either support from afar or kill an otherwise safe enemy (i.e. a low health enemy who is staying in tower range for safety).  Generally, the point of a global ultimate is to be a threat to enemy champions from anywhere on the map. The global ultimates are Gangplank's  Cannon Barrage, Karthus's  Requiem, Ezreal's  Trueshot Barrage, Draven's  Whirling Death, Ashe's  Enchanted Crystal Arrow, Soraka's  Wish, and Shen's  Stand United.

Nocturne's  Paranoia and Twisted Fate's  Destiny are partially global, with the first part of the ultimate having global range, but the second part having limited range.