Moorland Drifter

Delirium usually attaches a splashy payoff to the four-type threshold; this Spirit inverts that instinct and treats the same graveyard count as a passive upgrade to a body you were happy to play anyway. The floor is a clean white two-drop that trades on the ground without asking the deck to bend around it. The ceiling arrives once four card types stack up in the bin, at which point the Drifter gains flying and starts slipping over blockers. That is the structural trick: it never demands you build a graveyard for it, only that a graveyard built for other reasons happens to feed it. The wings come free, with no sacrifice cost to track and no counter capping how long they last. The honest catch is that the ability is conditional and reversible: lose a type to exile or a shuffle and the flying comes off, so combat math that favored you can invert mid-game. It cares about a graveyard that is diverse rather than deep, four distinct types being easier to assemble incidentally than to chase, which keeps the payoff cheap and the requirement soft. A creature that asks nothing up front and pays out whenever the yard fills, then trusts an aggressive white shell to have filled it already.