Other versions of this card, which only has a single keyword (Rush, allowing it to attack on the turn its played), are available, and will set you back just a few dollars
Almost every Commander deck that runs more than a single color has one, and even a few mono-colored decks too
However, even if the shrink-effect kills the blocking creature - say it's a mere 1/1 token - the attacker is still considered blocked
Giving your opponents counters works out well in EDH because you can make a friend, and you can even broker a deal to give somebody an Oblivion Stone or something should that seem like the best option
If one version proves more popular for some reason, itll likely fetch a higher price
At the best of times, Modern has the most diversity of any Magic format