In-game, exile is usually your best bet
(Gold, artifact, and colorless aren't colors.) If Conqueror's Flail is attached to a creature you control and you activate its equip ability targeting another creature you control, there's no time in between activating that ability and the resolution of that ability during which it's not attached to a creature
Eight-and-a-Half-Tails Eight-and-a-Half-Tails received a reprint with this set, and it's one of the better mono-white commanders out there
It's also an interesting black draw in a multi player format like commander, where you would have options for how many cards to draw (and life to lose,) based on the chosen player's graveyard
Hemming and hawing, I finally settled on Fire Elemental over a three-drop of comparable power level that I was considering
(Thank goodness!) But don't worry