Hashaton, Scarab's Fist Yes, you need to ramp in one of the slowest color combinations (Esper ) but that discard just became a free copy of the creature, and possibly improved it as a 4/4
Adding in a Ledger Shredder will help fill your graveyard up quickly, thanks to its connive ability, triggering fairly frequently as you have three other players to potentially cast two spells in a turn, giving you three discards before your next turn
The lesson here is that the mind can be blinded easily by the quest for the ideal (whether that ideal be a curvaceous co-ed or an intriguing design challenge)
Emrakul at least makes up for it by refunding the turn it steals from the chosen player
Shes also a fairly futureproof card
Isshin, Two Heavens As One is 3/4 Human Samurai that costs one red, one white, and one black