These cards all want creatures that can sit in the graveyard and as such they also very much want things that can put such cards into the graveyard
Stock Up Stock Up has been played more and more ever since it was released
Even cards with effects similar to this, however situational, such as Second Sunrise, are exceedingly powerful and have won tournaments in the past (Second Sunrise, in particular, is still banned in Modern)
While the focus is on the booming modern Pokemon card market, older cards continue to rise in value
I have a few Boros decks that wouldnt mind having mana that can only be used earlier in the turn, and I would still rather play this than a vanilla tap land
Most Modern decks are overloaded with nonbasic lands, with means it's pretty realistic that on Turn 5, Anathemancer would be dealing at least four and maybe five damage per trigger