Its going to be impossible to build around Duskmantle Seer for Sealed deck play, but a 4/4 flying creature for 4 that can "sort of" race is still tempting
Shes a four mana Black and Green 2/2 that lets you gain two life whenever you sacrifice a Green Creature, and lets you pay two life when you sacrifice a Black Creature, and if you do, your opponents have to sacrifice a Creature too
Yarok, the Desecrated Yarok, the Desecrated is a value machine, doubling your enter the battlefield triggers and remember its any permanent, not just creatures, so abilities like Landfall will trigger an additional time too
The latter are interested in cheap bodies that do a thing for sacrifice purposes and flicker decks are all about getting good ETBs over and over to outgrind opponents
Honorable Mention #2 (#13 Overall) - Response // Resurgence I run this in many of my Commander decks, more so than the next few
There are probably some very good Palinchron lines, but Id rather not be able to go infinite too earlyalthough I guess without tutors, it might be okay