Over the course of two turns he makes your opponent discard two cards, while you draw two cards, before making each opponent sacrifice two of their creatures
Of course, there have been cases in which it was done simply for the sake of doing it, but it was quickly found out those cards didnt do much for the game as they are quite situational, so the newer iterations were either pushed or R&D tried to do something more interesting with them
DOMINARIA UNITED: GREEN Defiler of Vigor is the green version, and naturally, it grows your team with counters and brings a hefty body to the table for five mana
If you cast it from your hand and it's the second time you've cast it from your hand this game, you win the game
However, the good thing about this is that the Energy acceleration method works with any Grass-type, making the strategy flexible
Alternatively, Fastbond has a similar effect which requires you to pay life for additional land