In addition to that, it also has an Instant Adventure paying one colorless and one black, plus an additional cost of sacrificing a creature to draw two cards
Klinklang PLS/Durant NVI, for instance, utilizes Dowsing Machine perfectly during the mid to late-game phase, borrowing another copy of Enhanced Hammer, Pokmon Catcher, or even Escape Rope/Switch to last that little bit longer until the opponents deck has been properly depleted
Sacrificing a creature per scry is a steep cost, but the second ability helps to recoup your losses
If you really want to go down the rabbit hole of abusing Bloodforged Battle-Axe, you can double the tokens with Anointed Procession, tap them for mana with Inspiring Statuary
This is the context for Revised Edition , also known as Revised or 3ED