My biggest planet was as big as the entire solar system, but then it hit the tiny little sun and died. It was a star itself. Make a planet large enough, and it becomes a star.
I use parting gift in a different way. I don't have Kamikaze though. In my deck, I make use of 2 repairs and 5 portal expantions. I also have 2 demon knights and other demon cards, which are very soul intensive. To get souls, things must die, so why not use parting gift, send out weak units to be slaughtered (Harvesting souls and dealing damage to the enemy) And when the time is right, switch parting gift for soul siphon, play all the power cards, and one last repair. Even if you run out of time, your guaranteed 1800 gold as long as your portal is at full health.
So far, I count 4 ways to win the game. Either claim the entire city back, claim town hall and make a new government, Find the dark portal and close it, or research a cure.
I like my deck. I dont care if they have walls of archers, I will just send one unit at a time against them, letting my puny units die while getting the last laugh with parting gift.
 "You are a... The Sequel"){kind=icon}
 "Zombie Knight"){kind=icon}
 "Vampire Physics"){kind=icon}
 "Vampire Physics Walkthrough"){kind=icon}
 "Hack Slash Crawl"){kind=icon}
 "Upgrade Complete 2"){kind=icon}
 "Flood Runner 3"){kind=icon}
 "Simple Bubbles"){kind=icon}
 "A platform game"){kind=icon}
 "Aurora"){kind=icon}
 "Insectonator"){kind=icon}
 "Drug Tycoon"){kind=icon}
 "Eternal Tower Full Life Version"){kind=icon}
 "Cardian"){kind=icon}
 "Rebuild"){kind=icon}
 "Shattered Colony: The Survivors"){kind=icon}
 "The Codex of Alchemical Engineering - Magnum Opus Challenge"){kind=icon}
 "The Codex of Alchemical Engineering"){kind=icon}