Although the exact mechanics aren't confirmed, if they follow previous games, you should be able to collect most of your missing cards in the Kanto collection through trading
You potentially can also use the front side of Invasion of Shandalar to return massive finishers like Portal to Phyrexia or Atraxa to your hand, flip Invasion of Shandalar, and drop them into play on future turns, which sounds powerful if you can find the time to get it set up
After youve taken in the monstrosity that is the resulting jpg, note that your chances of winning the match are: 0.5 * a * d + 0.5 * a * (1 d) * c + 0.5 * (1 a) * c * d + 0.5 * b * d + 0.5 * b * (1 d) * c + (1 b) * c * d and your chances of losing are: 0.5 * (1 a) * (1 c) + 0.5 * 1 a * c * (1 d) + 0.5 * a * (1 d) * (1 c) + 0.5 * b * (1 d) * (1 c) + 0.5 * (1 b) * (1 c) + 0.5 * (1 b) * c * (1 d) Now, the skilly thing here is that if you have a 50-50 win / loss ratio at a point (lets say for a, so a = 50% or 0.5) then 1 0.5 = 0.5, and we see that the chances of winning and losing are equal (when a = b = d = c = 0.5)
Run your fingers over the card, paying attention to any deviations in texture that might signal a counterfeit
2/2 Illustrated by YW Tang
SUDA-JP067 Dark Supremacy Normal Trap Card You can only use the (1)st and (2)nd effect of this cards name each once per turn