Nothing compares to the recent Charizard VMAX that still has a market value of $375, but these are still worth some good money
Shop the Gaming Mat Company 2 Player Yu-Gi-Oh
Dice-rolling, sideways-prints (Burning Cinder Fury of Crimson Chaos Fire), fused cards (B.F.M
So if you really want to know what promos are Pauper legal, you have to find a list of all common Magic Online promos then MANUALLY LOOK UP EACH CARD to see if it has other online printings (in which case it isn't legal), unless one of those other printings is at Common (in which case it is legal)
When combined with cards that benefit your opponents a little too much or even more than yourself, Tataru Taru is an incredibly cheap way to even the playing field for only two mana
Bitterbloom Bearer If theres one creature type that instantly earns my attention in any return to Lorwyn, its Faeries