Roil Cartographer is a Magic: The Gathering card, an uncommon blue creature from Modern Horizons 3 (MH3), a draft-focused set released in June 2024. It is collector number 67 in that set, with art by Miranda Meeks. It costs {1}{U} (one generic and one blue mana) to cast, for a mana value of 2. It is a 1/3 creature. Its colour identity is blue. It is legal in Modern, Legacy, Vintage, Commander, Duel Commander, Oathbreaker, Brawl, Historic, Timeless and Gladiator. Modern Horizons 3 is its only printing so far. The latest aggregated market price for this printing is $0.20 (normal finish, as of 2026-11-02).
Card text
Landfall - Whenever a land you control enters, you get {E} (an energy counter).
{T}, Pay six {E}: Draw three cards.
"The world shifts constantly, but that doesn't mean it can't be mapped. Our maps must shift as well."
Market price
Latest aggregated market price for the normal finish of this printing: $0.20 (as of 2026-11-02).
The figure covers this printing only; other printings carry their own price on their own page.
Format legality
Legality of Roil Cartographer 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
Modern Horizons 3 (MH3) #511
Uncommon
2024
Official rulings
The 8 most recent official rulings for Roil Cartographer, newest first.
A landfall ability doesn't trigger if a permanent already on the battlefield becomes a land.
A landfall ability triggers whenever a land you control enters for any reason. It triggers whenever you play a land, as well as whenever a spell or ability puts a land onto the battlefield under your control.
Whenever a land you control enters, each landfall ability of the permanents you control will trigger. You can put them on the stack in any order. The last ability you put on the stack will be the first one to resolve (As a result, you can have those abilities resolve in the order of your choosing.).
{E} is the energy symbol. It represents one energy counter.
Some triggered abilities that state that you "may pay" a certain amount of {E} describe an effect that happens "If you do." In that case, no player may take actions to try to stop the ability's effect after you make your choice. If the payment is followed by the phrase "When you do," then you'll choose any targets for that reflexive triggered ability and put it on the stack before players can take actions.
Keep track of how many energy counters each player has. Potential ways to track this include writing theme down on paper or using dice, but any method that is clear and mutually agreeable is fine. (At higher levels of tournament play, dice may not be allowed for tracking counters that players have.)
Some spells and abilities that give you {E} may require targets. If each target chosen is an illegal target as that spell or ability tries to resolve, it won't resolve. You won't get any {E}.
If a spell or ability with one or more targets states that you "may pay" some amount of {E}, and each permanent that it targets has become an illegal target, the spell or ability won't resolve. You can't pay any {E} even if you want to.
Similar cards
Other creature cards with a blue colour identity, ranked by how often they appear in Commander decks.