TCGSentry
Promise of Loyalty

Promise of Loyalty

Marvel Super Heroes Eternal-Legal · #0142
CardKingdom, live
Buylist115 × $0.04
Retail8 × $0.49 (NM) 0 × $0.39 (EX)
TCGSentry recommendation?Whether now is a good time to sell this card to CardKingdom. From its buylist price over the last 90 days we read where it usually sits (Normal), a high worth aiming for (Good, your sell target), and its rare peak (Best). At or above Good we say Sell, otherwise Hold.Sell!
$0.04Now · 115 buying

At the top of its range. A standout time to sell.

Now $0.04
Normal$0.03usual priceGood / Best$0.04

CardKingdom buylist history

6M
good · best $0.04normal $0.03$0.03$0.06$0.0801169 Jun 202619 Jun 202628 Jun 20267 Jul 202616 Jul 2026
CK buylist priceCK buylist quantityNormalGoodBest

Should you sell Promise of Loyalty?

Yes. CardKingdom’s buylist for Promise of Loyalty is right at the top of its range, so this is one of the strongest moments to sell it into their buylist.

As of 16 Jul 2026, the buylist price is $0.04, with CardKingdom buying 115 copies.

That works out to +33.3% over the last 7 days and +33.3% over the last 30 days.

The good sell price is $0.04, and it normally sits around $0.03.

The most CardKingdom has paid in the last 90 days is $0.04.

It last touched that best of $0.04 around 9 Jun 2026.

Sell Promise of Loyalty now →

Prices come from CardKingdom. Updated 16 Jul 2026.

How we work out the good sell price for Promise of Loyalty

Every price on this page comes from CardKingdom’s buylist, which is what they pay to buy a card from you. We look at the last 90 days of that buylist for Promise of Loyalty and only count the times CardKingdom was actually buying it, because a price they are not buying at is not a price you could ever get.

We weight each price by how long it stayed in place. A price that held for three weeks tells you far more than one that lasted an hour, so the steady levels matter more than brief spikes.

From that history we work out three numbers for Promise of Loyalty:

  • Normal ($0.03). The price the buylist sits at most of the time.
  • Good ($0.04). A strong price that comes up often enough to be worth waiting for. It sits near the top of the realistic range with one off spikes stripped out, so it is a target you can expect to reach again rather than a fluke.
  • Best ($0.04). The highest CardKingdom has paid for Promise of Loyalty while buying it in this period.

Because there is only a short history for Promise of Loyalty so far, we use the highest price seen as the good target until more data builds up.

We mark Promise of Loyalty as a sell once the current buylist reaches its good price, give or take a few percent, and as a hold below that.

See the live chart and set an alert →

What the numbers mean

  • Current buylist. What CardKingdom pays for Promise of Loyalty right now.
  • Wanted. How many copies CardKingdom is buying at that price. Zero means they have paused buying for the moment.
  • Retail (NM). What CardKingdom charges to sell you a near mint copy. We show it for context, but our signals are about selling, so the buylist is what we focus on.

See the biggest movers on TCGSentry →

Buylist price history for Promise of Loyalty

Over the last 90 days the buylist ranged from $0.03 to $0.04.

DateBuylistWanted
16 Jul 2026$0.04115
16 Jul 2026$0.04114
16 Jul 2026$0.04115
16 Jul 2026$0.04116
15 Jul 2026$0.03114
15 Jul 2026$0.0389
15 Jul 2026$0.0385
15 Jul 2026$0.0383
15 Jul 2026$0.0381
15 Jul 2026$0.0373
15 Jul 2026$0.0353
15 Jul 2026$0.0352
15 Jul 2026$0.0348
15 Jul 2026$0.0351
15 Jul 2026$0.0349
14 Jul 2026$0.0341
14 Jul 2026$0.0315
14 Jul 2026$0.0312
14 Jul 2026$0.0310
9 Jun 2026$0.030
9 Jun 2026$0.080

Each row is a buylist price change CardKingdom posted. Wanted is how many copies they were buying at that price.

Open the interactive chart →

About Promise of Loyalty

Promise of Loyalty is a R Magic: The Gathering card from Marvel Super Heroes Eternal-Legal (#0142). The prices on this page come from CardKingdom's public buylist and retail feeds, last updated 16 Jul 2026.

See all Marvel Super Heroes Eternal-Legal cards →

Look up Promise of Loyalty on Scryfall →