Feedback about Thunderlord's Decree and Kog'Maw

1. About Thunderlord's Decree Once I saw the new keystone Thunderlord's Decree, I thought it should be the raise of on-hit effect. However, it got an unreasonable CD. I don't think there is anyone who use this keystone for assassinating. For assassinating/burst, it's damage is bad. Why don't I use Deathfire Touch which has much higher damage, no CD and easy to use(no need to stack the 3rd attack/spell). It should be either i) remove the CD for on-hit effect attacker / fast spell caster ii) at least 3 time the damage for assassinating/burst to compare with other keystone.

2. About Kog'Maw Is there any Riot staff who really hate Kog'Maw? Kog'Maw is the only adc champion that has nearly no self-protection tool. The only thing he got is his poor E to slow enemies a bit. Once he get caught, it means death. However, he already has low movement speed, short attack range with no W, no burst, pooer defensive status, nearly no escape tool. You even nerf his R to and W to make him extremely mana hungry. You make it even worst by doubling his attack speed with W to lower his mobility. If you really wanna do so, a extremely high damage should be expected with W, but you add a 55% damage to make high AD meaningless. Okay, we can still play on-hit effect. But you nerf BotRK, nerf his W damage a lot (originally, it is 6% max health. If you wanna compare the old version in term of damage, you need 3% max health now. However, as a on-hit effect attacker, you need 6 items to make it 3% with nice attack speed. Worse still, you lengthen its W CD by a very large extent. Now, he has the worst survivability, bad laning phase and poor damage. Meanwhile, you are buff Vayne W to 12% max health as true damage. I really can't see the point of nerfing him to such a great extent, expect he killed someone lover and the guy hate him a lot. Here is my suggestion. i) making his W have a base % damage (like 2% for max W) / scale better / deal true damage; ii) make him run faster / has longer range even without W / higher armor and magic resist; iii) make him less mana hungry (he is the no.1 mana hunger in adc as non-burster); iv) lower his W cooldown with no mana cost; v) making Thunderlord's Decree no CD / add back Madred's Bloodrazor.

Thank you.