Restless Reef
Land
This land enters tapped.
: Add 
or 
.
: Until end of turn, this land becomes a 4/4 blue and black Shark creature with deathtouch. It's still a land.
Whenever this land attacks, target player mills four cards.
- CMC
- 0
- Mana cost
- Color identity
- BU
- Rarity
- rare
- Set
- The Lost Caverns of Ixalan Promos
- Price
- —
- EDHREC rank
- #3663
Restless Reef enters untapped, produces blue or black mana, and can crew itself into a 4/3 menace threat by milling four cards — all on a single land slot. The cost is real: the mill is self-inflicted and the creature mode costs three mana to activate, so it earns its slot only when your deck wants cards in the graveyard. In The Ancient One builds, that's exactly the condition you're already building toward, making Restless Reef a near-automatic include.
Best Commanders
Commanders with the highest synergy
The Ancient One
The Ancient One cares about the number of instant and sorcery cards in graveyards, and Restless Reef mills four at a time — fueling the power check while threatening a 4/3 menace body that can close out a stalled board.
Lazav, Dimir Mastermind
Lazav, Dimir Mastermind wants specific creatures in opponents' graveyards, and Restless Reef's self-mill four can accidentally hit your own creatures for Lazav to copy — a minor upside, but Dimir decks will also just take a free dual that sometimes attacks.
Tasha, the Witch Queen
Tasha, the Witch Queen runs in Dimir and frequently wants to fill graveyards to enable her copy effects; Restless Reef slots in as incidental mill that never costs you a card, since it would occupy a land slot regardless.
Format Analysis
Where it lives, where it can’t
| Format | Verdict |
|---|---|
| commander | legal |
| legacy | legal |
| modern | legal |
| pioneer | legal |
| standard | legal |
| vintage | legal |
| pauper | not legal |
| oathbreaker | legal |
In Commander, Restless Reef is a role-player rather than a staple: Dimir graveyard decks — especially The Ancient One builds — want it, and everyone else can take it or leave it. The activation cost of three mana and the self-mill clause mean it's a liability in control shells that want clean mana and an empty yard. In competitive 60-card formats like Modern and Pioneer, Restless Reef faces steep competition from utility lands that produce mana and threaten combat without costing you cards, so it rarely makes the cut outside dedicated mill-matters strategies. Legacy and Vintage have even higher bars, and Standard legality gives it a window in aggressive Dimir creature decks, but the floor is low there too.
Key Combos
Combo lines featuring this card
Price Context
Current price
unknown tier
Price data for Restless Reef isn't currently available in our feed — check Scryfall or your preferred vendor for a live number. As an uncommon land with a narrow niche, it typically sits in the affordable range and is easy to pick up in bulk.
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Sources
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.