Crack the Earth

Each player sacrifices a permanent of their choice.

Bust

Boom

Destroy target land you control and target land you don't control.

Boom // Bust

Smallpox

Each player loses 1 life, discards a card, sacrifices a creature of their choice, then sacrifices a land of their choice.

Experimental Synthesizer

When Experimental Synthesizer enters or leaves the battlefield, exile the top card of your library. Until end of turn, you may play that card.
{2}{R}, Sacrifice Experimental Synthesizer: Create a 2/2 white Samurai creature token with vigilance. Activate only as a sorcery.

Perilous Research

Draw two cards, then sacrifice a permanent.

Hatching Plans

When Hatching Plans is put into a graveyard from the battlefield, draw three cards.