Diffusion Sliver
Creature — Sliver
Whenever a Sliver creature you control becomes the target of a spell or ability an opponent controls, counter that spell or ability unless its controller pays 
.
- CMC
- 2
- Mana cost
- Color identity
- U
- Rarity
- uncommon
- Set
- Commander Masters
- Price
- $4.84
- EDHREC rank
- #4109
Diffusion Sliver makes your entire board cost opponents two extra mana to target with spells or abilities — a tax that compounds fast in a tribal deck running twenty-plus Slivers. It earns its slot in The First Sliver and every other Sliver commander precisely because the protection is free, passive, and scales with creature count.
Best Commanders
Commanders with the highest synergy
The First Sliver
The First Sliver's cascade engine dumps Slivers onto the board at speed, and Diffusion Sliver turns that wide board into a wall of two-mana taxes that most removal suites simply can't afford to pay across seven or eight targets.
Format Analysis
Where it lives, where it can’t
| Format | Verdict |
|---|---|
| commander | legal |
| legacy | legal |
| modern | legal |
| pioneer | legal |
| standard | not legal |
| vintage | legal |
| pauper | not legal |
| oathbreaker | legal |
In Commander, Diffusion Sliver is a staple — a two-mana piece that punishes the spot removal that would otherwise pick apart a Sliver board one piece at a time. Multiplayer tables amplify the effect: three opponents each paying two extra mana per targeted Sliver is a tempo drain that can grind whole turns away. In Modern and Legacy, tribal Slivers are fringe competitive at best, but Diffusion Sliver is a two-of in any build that wants to protect its pieces through counterspell-light metas. Pioneer is legal but Sliver tribal barely exists there at a competitive level, so it's a casual-only inclusion in that format.
Key Combos
Combo lines featuring this card
Price Context
Current price
$4.84 cheap tier
At $4.84, Diffusion Sliver sits at the high end of cheap — it's not a budget afterthought, but it's not a barrier to entry either. Demand is steady enough from the massive Commander player base that the price is unlikely to crater, and any reprint would only make it easier to slot into budget Sliver builds.
Explore
Sources
Mentioned
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.