most rare mtg card Valuable Mythic Cards The 10 Most Expensive Magic:

Theres even more absurd reprints to see

You want to control the board by eliminating every card your opponent plays, and Dragon Fire allows you to get rid of a high-value target that would otherwise be difficult to Challenge down

it also counts as a magical attack, meaning that your characters can continue to use their physical defensive skills (IE Blade Grasp) but you can still hit them with it

You wont find any dungeon or Class cards on my Top 10 list, which is somewhat amusing because these tend to be the cards that Im more excited to personally play with, they just dont fit the mold for the classically designed Cubes