It's the activated ability that's terrifying: once that's been activated for five generic and three black, any player dealt combat damage by the equipped creature immediately loses the game
Ruthless Technomancer is a nice companion card if you enjoy noodling around in the graveyard, and though Revel in Riches and Black Market are hugely popular, they paint a massive target on your back and often end up less impactful than curving out with a creature and keeping on the pressure
Instead, at turn 5 with no cards in hand, you could play this and still have ink to play a 3-cost character maybe even a Fox to set it up again next turn
But the baseline for Flame of Anor is two cards drawn by whoever you like that can also serve two other useful spot removal purposes
I will be transparent and say that I believe if any of these are ever to return, the most likely one is Jeweled Lotus due to its one-shot nature, iconic feel, and ability to help support high-mana value commanders