Set symbol & card ID

Modern Horizons 3 set symbol

Modern Horizons 3 uses its own MH3 expansion glyph on the type line. Supplemental Horizons icons are easy to mix with premier Standard sets when you only glance at chase art.

Set code

mh3

Released

Jun 2024

Cards

524

Type

Draft Innovation

Lookalikes & traps

MH1/MH2 printings, Commander decks, and Special Guests can share characters. Borderless and serialized cards still carry the MH3 code when they belong to this product — match code, not hype title.

Confirm after the icon

Set code MH3 + collector number + treatment. Eternal demand comps belong to the exact printing, not “the MH3 mythic” as a class.

How to identify Modern Horizons 3 cards

1
Match the MH3 glyph on the type line before trusting a Twitter screenshot of the art.
2
Read rarity from symbol color, then note foil / borderless / serialized treatment as a separate axis.
3
Confirm MH3 on the information line so MH1/MH2 or guest printings do not slip into the pile.
4
Scan with Tappr when the listing concatenates multiple Horizons products under one name.

Rarity by symbol color

Modern color rules: black common, silver uncommon, gold rare, orange mythic. Serialized and special frames do not invent a new rarity color; confirm the treatment after the color.

Common Black (white in rare exceptions)

Uncommon Silver symbol

Rare Gold symbol

Mythic Rare Orange / bronze (post-Alara)

Legend shows the modern post-Exodus palette. Pre-Exodus sets and special rarities (for example Time Spiral purple timeshifted) follow the rarity reading above — not this swatch row alone.

FAQ

What is the Modern Horizons 3 set code?

MH3. Older Horizons codes are different products with different liquidity.

Do serialized MH3 cards change the symbol color?

No. Serialization is a treatment/scarcity layer. Draft rarity color on the expansion symbol still follows common/uncommon/rare/mythic.

How do I avoid mixing MH3 with earlier Horizons sets?

Always read the set code after the icon. Shared mechanics or guest cameos are not proof of MH3.

How do I identify an MH3 card quickly?

MH3 glyph → rarity color → code + number + treatment. Scan with Tappr to finish the printing match.

Modern Horizons 3 set guide Card list Checklist Symbol ID guide

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