Sliver Gravemother: Legendary Creature - Sliver, Commander Masters. The "legend rule" doesn't apply to Slivers you control. Prices and printings on Mana Grove.
Mana cost
{W}{U}{B}{R}{G}
Mana value
5
Type
Legendary Creature - Sliver
Colour identity
White, blue, black, red and green (WUBRG)
Power / toughness
6/6
Rarity
Mythic
Set
Commander Masters (CMM)
Released
2023-08-04
Collector number
707
Artist
Chris Rahn
Commander rank
6,190 (by how often it appears in Commander decks)
Sliver Gravemother is a Magic: The Gathering card, a mythic rare white, blue, black, red and green legendary creature from Commander Masters (CMM), a Masters set released in August 2023. It is collector number 707 in that set, with art by Chris Rahn. It costs {W}{U}{B}{R}{G} (one white, one blue, one black, one red and one green mana) to cast, for a mana value of 5. It is a 6/6 creature. Its colour identity is white, blue, black, red and green. It is legal in Legacy, Vintage, Commander, Duel Commander and Oathbreaker. Commander Masters is its only printing so far. It can be your commander. The latest aggregated market price for this printing is $17.25 (normal finish, as of 2026-08-30).
Card text
The "legend rule" doesn't apply to Slivers you control.
Each Sliver creature card in your graveyard has encore {X}, where X is its mana value.
Encore {5} ({5}, Exile this card from your graveyard: For each opponent, create a token copy that attacks that opponent this turn if able. They gain haste. Sacrifice them at the beginning of the next end step. Activate only as a sorcery.)
Market price
Latest aggregated market price for the normal finish of this printing: $17.25 (as of 2026-08-30).
The figure covers this printing only; other printings carry their own price on their own page.
Format legality
Legality of Sliver Gravemother by format. Formats in which it is not legal are not listed.
The other printings are listed newest first, with the rarity and release year of each.
Printing
Rarity
Year
Commander Masters (CMM) #777
Mythic
2023
Commander Masters (CMM) #782
Mythic
2023
Official rulings
The 8 most recent official rulings for Sliver Gravemother, newest first.
The "legend rule" is the rule that states that if a player controls two or more legendary permanents with the same name, that player chooses one of them, and the rest are put into their owners' graveyards.
Each token must attack the appropriate player if able.
If one of the tokens can't attack for any reason (such as being tapped), then it doesn't attack. If there's a cost associated with having it attack, you aren't forced to pay that cost, so it doesn't have to attack in that case either.
If one of the tokens somehow is under another player's control as the delayed triggered ability resolves, you can't sacrifice that token. It remains on the battlefield indefinitely, even if you regain control of it later.
If an effect stops a token from attacking a specific player, that token can attack any player, planeswalker, or battle, or not attack at all. If the effect stops the token from attacking a specific player unless a cost is paid, you don't have to pay that cost unless you want to attack that player.
While the "legend rule" doesn't apply to Slivers you control, you can control any number of legendary Slivers with the same name and none of them will be put into the graveyard.
If you control more than one legendary Sliver with the same name and the "legend rule" begins applying to them again (perhaps because Sliver Gravemother leaves the battlefield) you'll immediately have to comply with the rule and put all but one of those Slivers into the graveyard.
Exiling the card with encore is a cost to activate the ability. Once you announce that you're activating it, no player may take actions until you've finished. They can't try to remove the card from your graveyard to stop you from paying the cost.
Similar cards
Other creature cards with a white, blue, black, red and green colour identity, ranked by how often they appear in Commander decks.