Players often put the best cards into their decks without thinking about optimizing their draws or positioning themselves to best sequence their spells
Grindstone costs 1 less mana to play, 1 more to activate, but it has the potential to reactivate itself
Many decks can create artifact tokens multiple times a turn, and this construct is super easy to slot in
Notably, every time the Ring tempts the player, that player may choose a new creature to become the ringbearer (if they wish), which is a good idea if the original ringbearer starts struggling to push damage, or if the player resolves a better creature spell later
As far as changes I've made to the budget build of the deck, I'm not sure there really are any
Meriadoc Brandybuck provides backup for Sams food during the attack phase strategy