User blog comment:JmLyan/Laena, the Spirit Caller/@comment-25035197-20140607185757/@comment-7481207-20140607194144

There is consistency. Red deals more damage, yellow applies crowd control and blue gives more range at the cost of higher cooldowns, the only exception is blue's ultimate, as it is already global. The effects they have on basic attacks also follow this pattern: bonus damage for red, soft cc for yellow and bonus range for blue.