I’d love to see a feature added to Moxfield that makes it easier to track significant price changes in a decklist, especially for players who build around a strict budget.
I frequently play budget formats where the total deck price is part of the stipulation—for example, keeping a deck under $30, $50, or another specific threshold. The problem is that a deck can gradually become more expensive over time without me realizing which cards are responsible.
Currently, if I return to an old decklist and notice that the price has increased significantly, I have to individually hover over each card to check its current price. The only way to determine whether a card has actually spiked is if I remember what that card used to cost.
Proposed Feature: Price Spike Indicators
Moxfield could track the previous price of cards in a decklist and highlight cards that have experienced a significant increase.
For example, after selecting “Update to Cheapest Price”, Moxfield could compare the current prices against the prices from the previous update. Cards that have increased substantially could receive a visual indicator, such as:
A red tint or border around the card
A small upward-arrow icon
A percentage increase displayed on the card
A tooltip showing something like “$2.00 → $6.50 (+225%)”
The threshold could potentially be configurable, but something like a 25% or 50% increase would be useful as a starting point.
The indicators could remain visible until the user refreshes/updates the prices again, making it immediately obvious which cards are responsible for a deck becoming more expensive.
Why This Would Be Useful
This would be particularly valuable for budget formats, where a relatively small number of price spikes can push an otherwise legal deck over its budget.
For example, I might build a $50 deck and come back a few months later to find that it’s now $65. Rather than manually checking every card in the deck, I could immediately see that three cards have increased significantly in price and identify them as the reason the deck is now over budget.
It could also be useful outside of budget formats for anyone who wants to keep track of the value of their collection or understand why the estimated value of an old deck has changed.
Even a relatively simple implementation—remember the previous card prices and visually flag significant increases when prices are updated—would make managing budget decks much easier.