Amazing reno is just a board clear for 10 mana which isn't great. The hero power isn't reliable, and can fatigue you to death. The 8 mana 5/5 is too clunky too, so I cut it.
As for embiggen druid, you have to really rely on malygos aspect, sheep, solarian prime, and zephrys. If you manage to play DQ alex or cheat out power of creation before he clogs the board, you have a good shot to win.