Conqueror's Flail Sure, +1/+1 for each color of permanent you control is fine
They help you dig through your deck faster, and the discard effect ends up being a plus rather than a negative
As it is, I still think it's strong enough to make the list
However, if you're chasing some of the rarest and prettiest cards in the set for the love of the game, then there are plenty of gorgeous variants to look out for, including a new land cycle that includes a tease for Reality Fracture
One Discard at a Time This process may take just a few seconds in your head, but walking through each of these steps and evaluating your discard from each axis will give you a great basis to go off ofwhether you're being Mind Rotted, Fugued, or even just forced to discard to hand size