The game sucks. Because they release so often, and every set needs to be sold, sold, sold. Meanwhile, they need to prevent card overlap. New, unique things need to be invented that are at the same time attractive. Result is ability bloat, value bloat, cumulative power-per-card increase and a network of inelegant, inconsistent band-aid rule fixes only the judges know.
Magic: the Gathering is a bad game because they release too much, too quickly.