Quickstart Practice Game: http://forums.heroesofnewerth.com/showthread.php?t=121141&highlight=quickstart - gets rid of countdowns to starting the game - can play practice games offline
Bang! Buddies: http://forums.heroesofnewerth.com/showthread.php?t=70372&highlight=bang+buddies#Bang!%20Buddies - so you don't have to click to share courier
Automatic Ability Learner: http://forums.heroesofnewerth.com/showthread.php?t=24457&highlight=automatic+ability+learner - for those possibly clutch moments @ lvl 6