Blanking removal or winning combat for one mana is a powerful thing
Relentless Assault Rating: 0/10 Additional combat phase cards like Relentless Assault are too situational to rely on in Limited
Since you cast cards from your graveyard, its a good way to mix different play styles like self-mill and spellslinger, and it remains very easy to understand and balanced in 1v1 and multiplayer formats
It is an incredibly efficient mana accelerator that is seeing play as a four-of in Standard, Modern, Pioneer, Legacy, and Commander
However, if you were to look closely, some very intrepid hobbyists have been able to push Genie to hit prices of $20 to $30
The entry cost is remarkably low for a set with $900+ chase cards