Every graded card page on Misprint shows recent sold prices broken down by grading company and grade
Doran, the Siege Tower The following things are all true at the same time of Doran, which if you look at nearly every other conceivable Magic card, seems impossible: It shows something about the world it belongs to, it has an intriguingly "different" mana cost and p/t, it demonstrates a never-then-before-seen ability with very few words, and finally the flavor text effortlessly ties the smile-inducing ability, the nature of the character, and its application to our real lives
As others have said in more detail, that basically locks you into mono-Green, which creates all sorts of problems for deckbuilding
In terms of gameplay, needing to discard an Energy each time for the already costly Fire Blast may seem cumbersome, but its 90 damage could quickly turn the tide depending on early game situations
Hello all and happiest of days to each of you