User blog comment:Tridan V2/Blitzcrank, The Hextech Golem (Rework)/@comment-24420226-20151116193908

All of the new stuff looks really cool. I also really enjoy giving the E a little bit of scaling, as there was almost no points in putting ranks into it (all it did was slightly lower the cooldown. Even the damage was a static modifier to your normal auto attack damage). The mana sharing passive is a neat idea, but would be difficult to balance out. I might make it so that rather than just passively giving free mana, he can charge up little 'mana-packets' that he can periodically donate to a specific champion (Much how ZIlean can with donate experience with his new passive). Would have more design levers for balancing and also make the power it gives more visible, as apposed to an invisible aura-style effect.

The only other thing I would draw attention to is all this is most definitely a big buff to Blitzcrank as a support. His live version is more or less a one-trick pony; he pulls people into his team for easy kills. It can be devestating whenever he succeeds, but you can play around it with larger team strategy. For example, if you have a strong 5v5, you can just engage on blitz's team before he has a chance to set up for a pick. If you have good long-range poke, you can make it hard for blitz to get into position and just seige up around towers. Blitz can still be somewhat useful outside of pull+kill (dat ult doe), but if your plan revolves around dominating teamfights, you would probably pick a different support. Thes changes you have would make blitz very useful in a much wider variety of situations - namely in sieges where he can alleviate mana defeicencies and block poke. Even if Janna is a stronger support in terms of supporting poke/siege comps, the fact that Blitz would have a potent contribution to such a comp AND still have his game-swinging pick power would instantly make him very dominant option.

Buffing Blitz isn't inherently bad, but this kind of QoL buff can be very disruptive to the metagame and it's worth at least pointing out.