# 2014 Magic: The Gathering Magic #91

> The 2014 Magic: The Gathering Core Set 2015 foil version of Covenant of Blood (#91), a black sorcery featuring convoke mechanics.

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## Identity

- **Year**: 2014
- **Manufacturer brand**: Magic: The Gathering
- **Set / series**: Magic
- **Card number**: #91
- **Product type**: TCG_CARD

## Description

This foil version adds a shimmering finish to the card, appealing to collectors who appreciate the visual distinction foil treatments bring to the core set lineup. The card’s design, illustrated by Seb McKinnon, presents a striking image that complements its dark mana identity.

Gameplay mechanics are central to the card’s enduring appeal. With a mana cost of six black mana and one generic mana, Covenant of Blood requires a significant investment to cast. However, its convoke ability allows players to tap their creatures to reduce this cost, making it highly flexible in mid-to-late game scenarios. Each creature tapped pays for either one generic mana or one mana of that creature’s color, effectively turning your board state into a resource multiplier. The spell’s effect deals four damage to any target while the player gains four life, creating a net positive life swing that can stabilize a game or close out an opponent.

The foil treatment elevates its status within the common rarity tier, often sought after by those building themed collections or focusing on specific card numbers. The interplay between the card’s aggressive damage output and its defensive life gain makes it a versatile tool in any black deck. Whether used for its strategic utility or as a collectible item for the M15 set, this foil card stands as a testament to the creative depth found in Magic: The Gathering’s core releases.

Collectors often look for this card to complete their M15 foil sets, appreciating the balance of art and mechanics that defines the 2014 era. The card’s straightforward yet powerful effect ensures it remains relevant in various formats, while its foil finish provides a premium aesthetic that distinguishes it from non-foil copies. This combination of gameplay utility and collectible value makes it a notable entry in the Magic: The Gathering catalog.

## FAQ

### What is the convoke mechanic in Magic: The Gathering?

Convoke allows a player to tap creatures they control while casting a spell to help pay for its mana cost. Each creature tapped can pay for either one generic mana or one mana of that creature's color, effectively reducing the total mana required to cast the spell.

### What are the gameplay effects of Covenant of Blood?

Covenant of Blood is a sorcery that deals 4 damage to any target. Simultaneously, the player who casts the spell gains 4 life. This effect creates a net life gain of zero unless the damage is prevented or redirected, but it serves as a powerful removal spell with potential life gain.

### What set does the 2014 foil version of Covenant of Blood belong to?

This card belongs to the Magic: The Gathering Core Set 2015, often abbreviated as M15. Although released in 2014, it is part of the 2015 core set cycle and features card number 91 with a common rarity and foil treatment.

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Last verified: 2025-11-29.