Slaying a dragon will grant a buff depending on the element ("color") of the dragon; the buff can stack up to four times per element. These buffs are granted to the entire team (of the player who killed the dragon) and last until the end of the game.
Cloudbringer's Grace stacks addtively with other sources of ultimate CDR, and multiplicatively with regular cooldown reduction.
When a team kills their fourth Elemental Drake, they'll gain a powerful Dragon Soul from the dominant dragon (the one that transformed the Rift). Dragon Souls persist through death and last the remainder of the game.
Cloud Dragon Soul: Grants 10% bonus movement speed, increased to 40% bonus movement speed for 3 seconds after casting your ultimate (30 second cooldown).
Infernal Dragon Soul: Damaging abilities and basic attacks create an explosion around the target, dealing 90 (+ 25% bonus AD)(+ 15% AP)(+ 3% bonus health)adaptive damage to the target and nearby enemies (3 second cooldown).
Mountain Dragon Soul: After not taking champion damage for 5 seconds, gain a shield for 225 (+ 20% bonus AD)(+ 15% AP)(+ 15% bonus health).
Ocean Dragon Soul: Dealing damage to enemies restores 180 (+ 40% bonus AD)(+ 25% AP)(+ 10% bonus health) health and 90 (+ 4% maximum mana) mana over 3 seconds. Damage to minions and monsters regenerates with 30% effectiveness.
Damaging enemies causes them to burn for 90 − 270 (based on minutes)true damage over 3 seconds. Damaging an enemy champion below 20% of their maximum health blasts them with Elder Immolation after 0.5 seconds, dealing 100% of their maximum health as true damage. Elder Immolation has no cooldown. Lasts 180 seconds and is lost on death.
Aspect of the Dragon: Damage to non-turret units burns them for 45 + (45 per Dragon Slayer stack) bonus true damage over 3 seconds and reveals them for the duration. Also increases the strength of all Dragon Slayer buffs by 50%. Lasts for 150 seconds.
Empowered Aspect of the Dragon: Dealing damage to non-turrets burn the target for 135 + (90 per Dragon Slayer stack) bonus true damage over 3 seconds and reveals them for the duration. Also increases the strength of all Dragon Slayer buffs by 100%. Lasts for 300 seconds.
Changed to restore 4 / 8 / 12% (based on Stacks) of missing health and missing mana every 5 seconds while out of combat from every 18 / 12 / 6 (based on Stacks) seconds, restores 10% of missing health and 10% of missing mana.
Every 18 / 12 / 6 (based on Stacks) seconds, restores 10% of missing health and 10% of missing mana.
After the 35 minute mark, only the Elder Dragon will spawn. It grants a 120 second buff that increases other dragon's buff by 50% while also granting a burning effect on basic attacks.
Basic attacks and spells burn the target for (45 × Elder Dragons slain) (+ 45 per Elemental Dragon Mark) damage over 3 seconds and increases the strength of Elemental Dragon buffs by 50%. This stack only lasts 120 seconds or until death.
Enhanced Infernal Drake: + 12 / 24 / 36% (based on Stacks)attack damage and ability power.