Now that I have your attention...
Dengar is not OP, and there are ways to counter him. However, wave 10 just dropped, and one card in particular is fantastic on him - scavenger crane:
Dengar (60)
JumpMaster 5000 (33), Lone Wolf (2), Extra Munitions (2), Proton Torpedoes (4), Zuckuss (1), Overclocked R4 (1), Scavenger Crane (2), Punishing One (12), Counter-Measures (3)
Manaroo (39)
JumpMaster 5000 (27), Push the Limit (3), R5-P8 (3), Feedback Array (2), Engine Upgrade (4)
That's 99 points of goodness. In many matchups, Dengar can easily kill a ship a turn, meanning that you've got him permanently at 3 agility, so long as scavenger crane holds out. Overall, that's an absurdly powerful ship, and might tip Dengar over the edge of broken. What do you think?