mtg card explained MTG: All Foil Types, MTG Card Effects Guide :

Thanks to countless Evoke effects sending Elementals to the graveyard, its easy to see the synergy here

While not quite so close as Ratchet Bomb and Powder Keg there are some similarities in the comparisons between Stone and Disk such as the ability for only one to hit manlands

It didnt help that there was a pesky 2-mana flier in Squadron Hawk, which could fetch other copies of itself, quickly turning one card into a full set after being shuffled away by the Brainstorm ability

Massacre Girl, Known Killer With Massacre Girl, Known Killer, you get to draw a card whenever your opponents creatures with power 1 or less die