About Karma's ''W'' (Focused resolved/Renewal) VS Leblanc's ''E'' (Ethereal chains)

So I love playing with Karma ALOT. But i'd like to see your opinions concerning her ''W''.

• I've began rushing Rylai crystal scepter on Karma as a first item because of the potent kiting she could get against melee champions such as Udyr or Rek'sai.
• As of right now, her ''W'' is considered a damage over time spells because of the 3 ticks that recovers her ultimate cooldown with her passive
• The effect of Rylai's crystal scepters clearly mentions ''Dealing spell damage slows the target's movement speed by 35% for 1.5 seconds (15% for multi-target and damage-over-time spells''
• So even if that spell is a single target spell, it gets a 15% slow movement speed.

If you compare that spell with Leblanc's ''E'' (etheral chains) because both spell are pretty similar, you can see how ''unfair'' that spell is better than Karma's focused resolved.

• Leblanc's spell is a skillshot (950 range) spell when Karma's is a targeting spell (675 range). So basically the spell range of Karma's ''W'' is lower than Leblanc. Seems fair for a targeting spell.
• Leblanc's etheral chains can extend up to 1000 range (that is 50 range over the base range) while Karma's W can only go up to 675 range. This is unfair! how come she can go over her limit range and have over 325 range more than Karma's W considering both have a similar effect?
• When Leblanc hits a target, it slows him by 25% for the whole duration making it harder for the target to run away from her AND it gives her a kiting tool. Karma HAVE to stay closer AND have rylai's crystal scepter to have that kiting tool. but as you can see by the numbers, it is clearly inferior.
• Leblanc's ''E'' stacks with Rylai crystal scepter and it slows the target by 35% while Karma's ''W'' slows the target by 15% because of the additional tick? This is unfair since both spells do a damage over a duration. Speaking of which, It takes 1,5 second to root the target for Leblanc while it takes 2 seconds for Karma to root the target.
• Leblanc's ''E'' has 8 seconds cooldown at max level while Karma's ''W'' has 12 seconds cooldown. This is unfair.

So what am I proposing ? One or more of these :

• Make Karma's W spell compatible with Rylai crystal scepter (the 35% slow movespeed)
• Add an additional 50 or 75 max range for Karma's teether once she cast it on a champion
• Reduce Karma W cooldown to 14/13/12/11/10
• Reduce the time required to root the target by at least 0,25 second (0,5 prefered of course...)
• The starting root duration should be more rewarding, it should be increased (1,25/1,50/1,75/2,2/2.5)

Why should the root duration be more rewarding even if this is a targeting spell? Because Karma is considered a semi-mid range mage or support. She must stay an entire 2 seconds to root the target or else, she won't root it. And when you got your mantra activated with her W, it makes it even more frustrating when you can't heal for an additional 20% missing health when you miss the last tick.

What do you guys think?