Crest of the Ancient Golem

The Crest of the Ancient Golem is a buff in League of Legends. It grants increased Mana/Energy regeneration and Cooldown Reduction. The buff is available only on Summoner's Rift. It can be identified by swirling blue runes around the champion. Because of this, it is often called the "blue buff" or just "blue".

How to Get

 * On Summoner's Rift, by landing the killing blow to the Ancient Golem (from which its name is derived).
 * By killing a champion that currently possess this buff.

Strategy

 * Due to the large mana regeneration it provides, it is excellent for many casters but especially those with spammable spells or persistent AoE effects such as, , , , and.
 * Note that the buff increases energy regeneration on Ninjas to 65 per 5 seconds (the base is 50 per 5s).
 * The cooldown reduction granted is very useful for powerful ultimates with long cooldowns such as, , , , and.