Fully optimizing this deck with tutors could even bring it to higher levels of play , at the very least Bracket Four
Look at the average price to determine your cards market value
These cards dont sell often, but when they do, they almost invariably go for more than however much the market thought they were worth, so Market Price is always playing catchup to reality
With that being said, I consider Colresss Experiment a clear top 5 card that will enable a lot of crazy combos with Giratina VMAX and other scary attackers
I can't see me playing this in a three colour deck ever, likely only in a mono one
Lastly, rounding out the top of the list is another mythic rare, this time a legendary enchantment: Sothera, the Supervoid