Now do it off hours against actual strong decks and not sub par player with crap decks, it can't challenge the meta and go forbid you fight six, red-eyes, blue eyes or spellbooks with a strong start. Only very few have made it and took the easy road. Don't waste your gems.
It's very easy when you know when to play when the strong decks aren't playing otherwise aliens can't really compete. My tip is to play easy mode and play middle of the day while all the jap p2w sleep then you can get the cheap KoG but it's not much of an achievement.