Toxic Stench

Target creature gets -5/-5 until end of turn.

Descend 4 — That creature gets -10/-10 until end of turn instead if there are four or more permanent cards in your graveyard.

Return target creature card from your graveyard to your hand.

Threshold — Return that card from your graveyard to the battlefield instead if there are seven or more cards in your graveyard.

Add .

Threshold — Add instead if there are seven or more cards in your graveyard.

, : Target creature gets -1/-1 until end of turn.

Threshold — , : Target creature gets -2/-2 until end of turn. Activate only if there are seven or more cards in your graveyard.

Destroy target land.

Threshold — If there are seven or more cards in your graveyard, instead destroy that land and Rancid Earth deals 1 damage to each creature and each player.

Target creature gets +X/+0 until end of turn, where X is the number of creature cards in your graveyard.