As far as changes to make to the budget build of the deck, I'm pretty happy with the main deck but not nearly as happy with the sideboard
Looking at the side deck, it is very targeted towards the main dominant decks at the time: Twilight and the mirror match, Zombie Synchro
For example, Overkill's mana value is 3, because it costs two generic mana and one black mana
In fact, I wouldnt be surprised if we see the emergence of a new archetype because of this card: Blue-Red Tempo
The reason behind this fluctuation often boils down to a combination of nostalgia and the strategic playability of the cards within the competitive scene
Its 483% return since 2004 reflects highly liquid, regulated, and diversified investments accessible to nearly anyone