# 2021 Magic: The Gathering Jumpstart: Historic Horizons #181

> Diffusion Sliver is an Uncommon blue Sliver creature from the 2021 Jumpstart: Historic Horizons expansion. It features a defensive ability that counters opponent spells targeting your Slivers.

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## Identity

- **Year**: 2021
- **Manufacturer brand**: Magic: The Gathering
- **Set / series**: Jumpstart: Historic Horizons
- **Card number**: #181
- **Product type**: TCG_CARD

## Description

Diffusion Sliver is a two-mana blue creature from the 2021 Jumpstart: Historic Horizons set, identified as card number 181. As part of the Magic: The Gathering trading card game, this Uncommon card plays a pivotal role in tribal strategies centered around the Sliver archetype. Designed by Trevor Claxton, the card captures the essence of defensive synergy that defines the Sliver creature type. In gameplay, Diffusion Sliver serves as a protective anchor for your board state. Its primary ability triggers whenever a Sliver creature you control becomes the target of a spell or ability controlled by an opponent. At that moment, you can counter that spell or ability, provided its controller pays an additional two mana. This defensive utility makes the card particularly valuable in competitive formats where spell interaction is critical to maintaining board presence. Collectors often seek out Diffusion Sliver to complete the Jumpstart: Historic Horizons set or to build cohesive Sliver decks. The card’s mana cost of {1}{U} and mana value of two allow it to be cast early in the game, setting up defensive structures before opponents can disrupt them. Its blue color identity aligns with wizards and control-oriented strategies, making it a versatile addition to various deck builds. For investors and hobbyists, this card represents a tangible piece of Magic: The Gathering history from the historic era. Whether you are aiming to finish your set or strengthen your tribal collection, Diffusion Sliver offers both mechanical depth and aesthetic appeal.

## FAQ

### What does Diffusion Sliver do in Magic: The Gathering?

Diffusion Sliver counters a target spell or ability unless its controller pays two mana when a Sliver you control is targeted. This defensive ability helps protect your tribal strategy from removal or disruption.

### What is the mana cost of Diffusion Sliver?

The mana cost for Diffusion Sliver is {1}{U}, requiring one generic mana and one blue mana to cast. This makes it an efficient early-game play in blue-based decks.

### What set is Diffusion Sliver from?

Diffusion Sliver is from the Jumpstart: Historic Horizons expansion, released in 2021. It is card number 181 and is printed as an Uncommon rarity card.

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Last verified: 2025-11-29.