On a base level, the only thing you need to do to get more value out of this than your opponents is to cast a ton of cheap spells
If you take a few minutes to shop around, however, you can usually save at least a few dollars per purchase of a recent set, and sometimes much more if youre looking for a more vintage option thats been out of print for a while
Cards like [[Quietus Spike]] make it even nastier
Call me old-fashioned, but that plus making a Treasure on subsequent attacks leaves a lot to like
So, you can just play this on curve if youre trying to finish your opponent off as quickly as possible, or you can disguise it, and end up paying 4 mana for a 3/2 that does 3 to your opponent which is a card youd probably play, and obviously its way better than that, both because you pay in installments and it makes your other face down creatures do the same thing