I think Infernal and Elder dragon have so op effect but other - uselesss.
1)Cloud Drake: ~~Increases the movement speed to 3 / 6 / 9%, tripled to 9 / 18 / 27% while out-of-combat.~~
Increase the movement and atatck speed to 3/6/9% on 3 sec while in combat.
2)Infernal Drake: Increases the attack damage and ability power to ~~12 / 24 / 36%~~ 5/10/15%.
3)Ocean Drake: ~~ Restores 4 / 8 / 12% of missing health and missing mana every 5 seconds when you haven't taken damage from champions or turrets within the last 8 seconds. ~~
Increase colldown reduction, heal and shileld power on 3/6/9%
4)Mountain Drake: ~~+ 10 / 20 / 30% bonus true damage to epic monsters and turrets.~~
Increase additional health, armor and magic resist to 5/10/15%
5) The Elder DragonSquare Elder Dragon grants a temporary buff called Aspect of the Dragon.
effect Aspect of the Dragon:
Dealing damage to non-turrets burn the target for 45 + (45 per Elemental Dragon Slain) bonus true damage over 3 seconds and reveals them for the duration.
~~Also increases the strength of all Dragon Slayer buff Dragon Slayer buffs by 50%~~
" is too op with baron effect"