Myr Reservoir
Myr Reservoir: Artifact, Scars of Mirrodin. Tap: Add Colorless Colorless. Spend this mana only to cast Myr spells or activate abilities of Myr. On Mana Grove.
- Mana cost
- {3}
- Mana value
- 3
- Type
- Artifact
- Colour identity
- Colourless
- Rarity
- Rare
- Set
- Scars of Mirrodin (SOM)
- Released
- 2010-10-01
- Collector number
- 183
- Artist
- Jung Park
- Commander rank
- 9,112 (by how often it appears in Commander decks)
Build around this card with Grover
About Myr Reservoir
Myr Reservoir is a Magic: The Gathering card, a rare colourless artifact from Scars of Mirrodin (SOM), an expansion set released in October 2010. It is collector number 183 in that set, with art by Jung Park. It costs {3} (three generic mana) to cast, for a mana value of 3. It has no colour identity. It is legal in Modern, Legacy, Vintage, Commander, Duel Commander, Oathbreaker, PreDH and Penny Dreadful. Scars of Mirrodin is its only printing so far. The latest aggregated market price for this printing is $1.99 (normal finish, as of 2026-11-03).
Card text
{T}: Add {C}{C}. Spend this mana only to cast Myr spells or activate abilities of Myr.
{3}, {T}: Return target Myr card from your graveyard to your hand.
A mana well as bottomless as the myr are tireless.
Market price
Latest aggregated market price for the normal finish of this printing: $1.99 (as of 2026-11-03).
The figure covers this printing only; other printings carry their own price on their own page.
Format legality
Legality of Myr Reservoir by format. Formats in which it is not legal are not listed.
| Modern | Legal |
|---|---|
| Legacy | Legal |
| Vintage | Legal |
| Commander | Legal |
| Duel Commander | Legal |
| Oathbreaker | Legal |
| PreDH | Legal |
| Penny Dreadful | Legal |
Official rulings
Three official rulings apply to Myr Reservoir, newest first.
- A card, spell, or permanent is a Myr only if it has the subtype Myr, regardless of its name. For example, Myr Reservoir itself is not a Myr.
- You can use the mana produced by Myr Reservoir’s first ability to pay an alternative cost or additional cost incurred while casting a Myr spell. It’s not limited to just that spell’s mana cost.
- The mana can’t be spent to activate activated abilities of Myr sources that aren’t on the battlefield.
Similar cards
Other artifact cards with no colour identity, ranked by how often they appear in Commander decks.