I'm a gold foil collector, so once Gold Foil draws were available, I've been buying those almost exclusively.
I start by maxing out GF common and rare + RF Legendary since I'm still missing a few BCX for a complete RF set. Then I spend the rest of my Glint to buy GF Epics!
Great strategy! I'm currently missing some RF legendary too, only got 2 or 3. Maybe that would be the goal.