Lack of mixed damage. (Your team comp was Nunu, Jayce, and Ezreal). Yes all of them do decent magic damage, but apart from Ezreal's ultimate, all of the magic damage has to be dealt up close and personal. And against Rumble, Jarvan, and Renekton, it was really easy to punish you for coming in to close to deal your magic damage (Jayce's thundering blow, Ezreal's essence flux).
As such you guys rarely came in very close to us and generally attempted to poke us down before a fight broke out. The only problem with this was that we stacked armor, as your long range abilities were almost entirely physical damage. Not only that, but as soon as one of our Warden's mails procked on Ezreal, it was incredibly easy to close in on him with Jarvan and Renekton dashing / ulting. That combined with Rumble's insanely long range ultimate and his move speed made it really hard for you guys to team fight against us.
Also we had smite, which made securing dragon's fairly easy, although your Ezreal was pretty close to stealing a couple times

Hopefully that helped, and it was a really good game ^.^



