Angel of the Ruins

The bind every white artifact-and-enchantment answer runs into is stranding risk: Disenchant handles a threat at instant speed but does nothing to the board once the coast is clear, while a body that also removes noncreatures tends to cost more than its rate can carry. This refuses to be a rate card at all. It bolts a two-for-one exile clause (the strongest form of removal, since neither target returns through graveyard recursion) onto a 5/7 flier, then makes the whole thing legal to pitch away. Plainscycling is what keeps it from ever being a dead draw: when the board holds nothing worth exiling and you are short a white source, you can discard it for the Plains you were missing instead of casting a seven-mana angel into open air. That is what the mana actually buys. You are not paying for a big body; you are paying for a card that is a land-fetcher when your mana stumbles and a double removal spell stapled to a real clock when you need to break an opposing engine. The "up to two" wording matters too: it can enter with no legal targets and simply be a beater, so it never sits in hand waiting for a board state to justify it. It is the answer white keeps reaching for and rarely lands cleanly, built so the one thing it can never be is a card you drew too early.