Similar to Ravenous Trap, Tormods Crypt provides a one-shot effect that hits the entire graveyard
Platoon Dispenser A big body that draws cards would be good even if it didn't spit out tokens to power its card draw ability
I go through all the deserts in Magic, ranking from worst to best and talking a bit about what gives each one its ranking
Generally you want to make sure you have a two or three-color identity for a theme like this, and remember that the majority of your good enablers will be in Grixis colors: Brallin, Skyshark Rider plus Shabraz, the Skyshark Raffine, Scheming Seer Chainer, Nightmare Adept Rielle, the Everwise Soul of Windgrace Amber Gristle OMaul plus Agent of the Shadow Thieves (or Criminal Past) Slogurk, the Overslime Despite their contrarian approach to the Commander metagame, discard decks are capable of some truly disgusting lines and offer a huge range for individual expression
These should perhaps be in a different section to the payoff as just making limp tokens isn't really payoff itself so much as just turbo charging other payoff cards
It isn't much of a duel, but your creature is still dominant