I thought they were C tier. Anyway, sure, if Corrin has undiscovered tech, then they might end up in the upper tiers, but no one said "Oh, well Meta Knight seems bad now, but he'd be high tier if he had some undiscovered tech". Sure enough, Meta Knight had hidden potential in his combo game, and now he's at the (admittedly inaccurate) spot of 10 on the tier list. His combos could have been found earlier, and thus counters could be learned earlier so people wouldn't put him so high, if American players weren't so lazy, they prefer to pick their easy top tiers instead of learning characters with hidden potential, not that I'm exactly hating on all Americans, seeing as I am one, but it took Mexico to learn MK and Japan to learn Mewtwo and Greninja before anyone else. However, I honestly can't imagine Corrin having ANY hidden tech at all, no combo throw and with weird stipulations to their one projectile, I can't see anything happening. If I'm wrong, I'll humbly apologize.