Rift Herald seems kinda shit and useless.
Anyone? Its been very very rarely contested in pro-play, even in the finals not one time do I recall either team ever going for it. IT takes an insane amount of time to kill, does massive damage, and gives a buff that is meh.
I personally liked the old rift herald, as it actually felt like a buff (Empowered recall, and like 40 AD I think). That respawns and doesn't take a year to kill.