This thread is for local-to-MTGNexus budget grinding decks. There is a thread that lists all budget grinding decks including those listed elsewhere that we are aware of here.
Beware: I have read that the unranked play queue matchmaking pairs unmodified decks against each other. If you modify your deck without significantly improving it, you may make your competition in that queue fiercer and lower your win rate.
Players who got the older starter decks were given any cards that they were missing from the updated starter decks at rotation. The decks were updated just before rotation, I believe. These match what I got at rotation, but the source post may represent your version better. The newer mono colored decks are missing most rares relative to the pre-rotation versions. The multi-color decks are close to the same, if not identical.
Where there is a subsequent post with an Arena budget version, I link the subsequent post with the upgraded version below the NPE decklist.