Nezumi Freewheeler // Hideous Fleshwheeler

A colorless 3/3 with menace that fills every graveyard as it lands, then wants to pull one of those cheap permanents back to the battlefield: the trouble is that a colorless creature has no natural line to a white reanimation trigger. The answer is a Phyrexian mana clause on the flip cost, , where the white pip can be paid with two life. That single symbol is the pivot. A deck running no white sources still gets the upgrade, because life stands in for the color it can't produce. You bank the yards on entry (yours and your opponents' both, since the transform can pull a mana-value-two-or-less permanent out of any graveyard), then pay to flip when you choose. The two-or-less cap keeps the recursion honest: mana dorks, small value creatures, a cheap enchantment or artifact, never a bomb yanked back at a discount. Menace sits on both faces, so the front 3/3 and the Fleshwheeler are equally annoying to gang-block while the reanimation assembles behind them. And because transforming upgrades the same permanent rather than replacing it with a second card, the flip is pure accrual: you keep the attacker and staple a reanimation onto it. The sorcery-speed gate is the tax that stops this from ambushing combat; the life or mana gets committed out in the open, well after the body first hit the table.