Blitzcrank's skills are outdated
Blitzcrank is an outdated champion, and really needs to be looked at. I want to mainly talk about his ult, but his Q is very powerful too. It has a 300 base damage at max level, and a 100% AP ratio. This is a VERY high damage skill with great utility; a pull. They should really lower the base damage and ratio on his Q. It isn't meant for damage, it's meant for its utility. Now his Ult... they need to change something on this. It is an AoE, Silence, nuke on a very short CD. 500 Base Damage at max level with a 100% AP ratio... and it silences... and it's AoE... and it's every 30 seconds without any CDR... I'm not even adding in it's passive. The passive does 300 Base Damage + 100% AP every 2.5 seconds to near-by random enemies. I think that this is fine, because it's only active while his ult is up. They really need to tone down its Base Damage, AP ratio, and increase its CD. It is a short Silence, I know that, but it still adds on to this ult. An AoE nuke shouldn't be available every 30 secs (18 seconds with 40% CDR).
Also: compare the damage between blitzcrank's pull and Thresh's pull. 300 + 100% AP to 240 + 50% AP. Thresh's is way weaker than Blitzcrank's...

Maybe there is a reason he has such a powerful ult, and if there is, please tell me. What's the reasoning behind this? 