# 2022 Magic: The Gathering The Brothers' War Promos #75s

> This 2022 Magic: The Gathering Arcane Proxy foil promo card (Card #75s) is a Mythic Rare Artifact Creature — Wizard featuring the versatile prototype mechanic.

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## Identity

- **Year**: 2022
- **Brand**: Magic: The Gathering
- **Set**: The Brothers' War Promos
- **Card Number**: 75s
- **Featured**: Arcane Proxy
- **Game**: Magic: The Gathering
- **Rarity**: Mythic Rare
- **Mana cost**: {7}
- **Type**: Artifact Creature — Wizard
- **Power / Toughness**: 4 / 3
- **Language**: English
- **Material**: Card Stock
- **Finish**: Foil

## Description

The Arcane Proxy is a distinct foil promo card from the 2022 Magic: The Gathering The Brothers' War Promos series, designated as Card Number 75s. Players may cast the spell with different mana costs, color identities, and power/toughness values while retaining its abilities and types. Designed by Kekai Kotaki, the card features a mana cost of {7} and a mana value of 7. When played as a standard creature, it enters the battlefield with 4 power and 3 toughness. Alternatively, the prototype mechanic allows it to be cast for {1}{U}{U} as a 2/1 creature. This flexibility makes the card a unique addition to any Magic: The Gathering collection, particularly for those interested in the strategic depth introduced during the The Brothers' War era. The Arcane Proxy’s ability triggers when it enters the battlefield. If you cast the creature, you can exile an instant or sorcery card from your graveyard with a mana value less than or equal to the creature's power. You then copy that card and may cast the copy without paying its mana cost. This effect provides significant value and interaction, allowing players to leverage cards already in their graveyard. The card’s color identity is blue, and its type line identifies it as an Artifact Creature — Wizard. The Arcane Proxy is a foil Mythic Rare promo card from the 2022 The Brothers' War Promos set for Magic: The Gathering.

## FAQ

### What is the mana cost for Arcane Proxy?

The Arcane Proxy has a standard mana cost of {7} and a mana value of 7. Through the prototype mechanic, it can also be cast for {1}{U}{U}.

### What are the power and toughness values for this card?

As a standard creature, Arcane Proxy has 4 power and 3 toughness. When cast using the prototype mechanic for {1}{U}{U}, it enters as a 2/1 creature.

### How does the prototype mechanic work for Arcane Proxy?

The prototype mechanic allows you to cast the spell with different mana costs, colors, and sizes. The card retains its abilities and types regardless of which version is played.

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Editorial content updated: 2026-10-08.

Site deployment: 2025-11-29.