The peak for this kind of removal is Attrition, which is borderline mass removal if you are playing the right deck
That sounds relatively low impact until you consider cards likeTemur Sabertooth, which can bounce something back to your hand to gain indestructible
If a permanent you control is both a Squirrel and a Food, count it only once when determining how many counters to put on Honored Dreyleader with its second ability
Or firing off damaging bursts with Fire the Cannons!, Grab Your Sword, Ransack, or Beast: Forbidding Recluse
The unearth is far more like a spell
(There are more configurations that have spread out lands than ones with lands all in a large clump.) As a visual example, consider two "sorted" distributions: LLLLLLLLLLLLLLLLLLLLSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS LSSLSSLSSLSSLSSLSSLSSLSSLSSLSSLSSLSSLSSLSSLSSLSSLSSLSSLSSLSS Clearly neither of these is a properly random deck