For those who find normal mode too hard in the last level heres how you do it:
Once you have colonized earth and the lazer, get all your earth fleet to the lazer turret being attacked and send your lazer turret fleet to colonize the turret not being attacked. Send your 2 main fleets to any area being attacked except for the shipyard. During this, send your ships that recently spawned on earth to the moon. Keep defending with your two fleets until you have enough ships to handle themselves without the two fleets. Send the two fleets to the shipyard after it has sent a wave. Use the shipyard to attack the motherships. The minimum ships you need is 40 for attacking the motherships
@zinabas: What kind of challenge would it be if it were equal? We already have an advantage over them and that's intelligence. maybe not you but for those that do have intelligence needs to use that fully to win.
the warp gate isn't too useful unless you make it so that ships passing an enemy planet get attacked by the orbiting enemy ships. That way the only way to attack a planet deep in the lion's den without sustaining losses would be by using the warp gate
That would be cool if there were ultimate cards. There would only be one for imperial, raider etc. They would be very difficult to get and is more powerful than a legendary but not so powerful that it can fight a whole gold army on its own. Perhaps used as a boss for campaigns
 "Solarmax"){kind=icon}
 "Bubbles 2"){kind=icon}
 "Tyrant"){kind=icon}
 "Pixel Purge"){kind=icon}
 "Combat Hero Adventures"){kind=icon}
 "Mosquito & Cow"){kind=icon}
 "Viricide"){kind=icon}