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Reito Sentinel

Artifact Creature — Construct

Defender
When this creature enters, target player mills three cards. (They put the top three cards of their library into their graveyard.)
{3}: Put target card from a graveyard on the bottom of its owner's library.

CMC
3
Mana cost
{3}
Color identity
C
Rarity
uncommon
Set
Kamigawa: Neon Dynasty
Price
$0.23
EDHREC rank
#15628
Buy on TCGplayer
Reito Sentinel card art
Reito Sentinel lets you put any card from your hand on the bottom of your library for one mana — an ability that looks like a drawback until you realize how many commanders want specific cards in specific positions. In River Song decks and Grenzo, Dungeon Warden builds, that one-mana activation is a precision instrument, not a consolation prize.

Best Commanders

Commanders with the highest synergy

01
River Song

River Song

26.0% of decks · synergy 0.26

River Song draws from the top and casts from the bottom, so keeping the bottom of your library stocked with high-value cards is exactly the work Reito Sentinel does — one mana per card, repeatable, on your schedule.

Format Analysis

Where it lives, where it can’t

FormatVerdict
commander legal
legacy legal
modern legal
pioneer legal
standard not legal
vintage legal
pauper not legal
oathbreaker legal

Reito Sentinel is legal everywhere that matters but sees virtually no competitive play in Legacy, Modern, or Pioneer — the ability to bottom a card costs mana and doesn't replace itself, which is a losing proposition in those formats. Commander is its natural home, where the game is long enough to exploit positional library manipulation and where commanders like River Song and Grenzo, Dungeon Warden make the bottom of your library a resource worth engineering. Outside of those specific synergy homes in Commander, Reito Sentinel is too narrow to earn a slot.

Key Combos

Combo lines featuring this card

Price Context

Current price

$0.23 bulk tier

At $0.23, Reito Sentinel is deep bulk — you'll find it in commons boxes or throw-in trades without effort. That price is stable; there's no crossover demand from competitive formats to push it higher.

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Sources

Mentioned

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Updated . Data from Scryfall, EDHREC, and Commander Spellbook.