If it's a command, it needs a fourth option. You should probably standardize the targeting as well, i.e. make the middle one target a player or make the other two target opponents.

Any suggestions for the fourth option then?

I'm not sure what's important in this set, but to go along with the theme (and not push the power higher; I'd probably cost this one mana more as is, before testing), maybe target player exiles the top 4 to 6 cards of their library?

Three mana is a good suggestion. I've got a generic topdeck exile card in the set already, I'll change it to search a player's deck for a card instead.

That's a little more black, yes. I just didn't like the aesthetics of having a different template only for the last mode.

Oy vey! Jester's Cap four cards for , plus a bonus? Granted, the cap is colorless (and recurrable), and might be overcosted nowadays? But Wizards still thought it was cool enough to put it in From the Vault: Relics.

I'm pretty sure that even if the card only killed one card in the opponent's deck, it would still be a strong fourth option. But I'm aware that this is supposed to be a marquee rare. I presume the best choice is somewhere between the two extremes...

Jester's Cap was in ftv because it was the premier (and first) way of doing that effect back in 1995. Sadistic Sacrament and Memoricide are better cards to compare. I run Sad Sac in Commander and it's great on turn 3 and turn 30.

There we go, that should help. The only reason I chose 4 was to expunge out all copies of a combo piece or such.