Each represents an activated ability with the listed cost that advances the Class to the level listed in that bar
If youre determined to have Ugins Labyrinth or Eldrazi Temple every game, Serum Powder joins Devourer in boosting your consistency without requiring coloured mana or any mana at all
You can run out of cards after a few turns, and I never found a good way to draw more outside of Mask of Memory or Howling Mine
The same week that Wizards announced the Stranger Things Secret Lair, it also promised that any Secret Lair card with brand-new mechanics would eventually be reprinted with a new name, art, and flavor roughly six months later
Fertile Ground is worse due to its higher cost, but getting perfect fixing makes it solid in color-intensive brews
As of right now, some games have a lot more representation than others, such as XIV and VII