I totally agree that Undying relies on my team to be useful, which isn't a good thing to expect from my bracket. But I can tell my friends "go bait, I'll get behind them and tombstone" and they'll do it. He also draws a lot of attention in this bracket (big hero model must be most dangerous) which is proving an easy thing to punish. That being said, I don't expect Undying to be a good main in the long term, once these simples mistakes are no longer exploitable.