Unless a player has another way to jump in and provide some powerful attacks, this ability from Seismitoad EX could create a problem of having very long games, doing only 30 damage each turn, even with its benefit
The art on this card is just gorgeous in every way
Consecrated Sphinx Consecrated Sphinx wouldve been easy top five on this list about 5-10 years ago, but times have changed, the game has accelerated, 6-drops are out of style, and Phyrexians are no longer in vogue
That said, something we can do is stop complaining about new cards that fit the definition of Mythic, but are not expensive or playable
(Some of them would take up more room than we have in the text box by themselves, but you probably won't control that many lands.) In case you do end up with more than 31 lands, the remaining prime numbers below 100 are 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, and 97