The rarest versions of the sheet, the silver scroll foil Japanese Mystical Archive cards, are exclusively found in Collector Boosters as well
I solved the immediate issue (fill the space) without addressing the larger more important issue (flesh out green commons to enhance the set)
If you want a sweeper that will always cost the same, Chain Reaction is the spell of choice
Sorin, Imperious Bloodlord I did say this is the best Vampire CARDS not just the best Vampire creatures
Pioneer has been created as a bridge between Modern and Standard, just as Modern was created as a bridge between Legacy and Standard seven years ago
All that to say that Dawn of Hope is a great card, and whilst a little slow for 60-card constructed, is a home run when it comes to Limited and Commander