Modern consists of thec ards from regular block releases. Supplemental products like Conspiracy, Commander Decks ot the upcoming Eternal Masters are not intruduced to modern. Even if Wizards were to print a card in Modern Masters that has never seen printing in a regular expansion, it would not be modern legal (although this would only happen as a mistake).
EDIT: all cards from Eternal Masters that were legal in Modern to begin with are of course Modern legal. The Name of the card matters, not the expansion symbol.
Only if the card has a print in a Modern legal set already. Modern is composed of sets (all sets since 8th edition and younger), special products like Eternal Masters don't add to the card pool, but may make some cards, that are already in he pool, more available for that format.
Only regular expansion sets ("block" sets such as Battle for Zendikar, Oath of the Gatewatch, Shadows Over Innistrad) and core sets (such as M15 or Origins) can add cards to the Modern format.
At most, Eternal Masters may possibly include some cards that are already Modern-legal.
Modern consists of thec ards from regular block releases. Supplemental products like Conspiracy, Commander Decks ot the upcoming Eternal Masters are not intruduced to modern. Even if Wizards were to print a card in Modern Masters that has never seen printing in a regular expansion, it would not be modern legal (although this would only happen as a mistake).
EDIT: all cards from Eternal Masters that were legal in Modern to begin with are of course Modern legal. The Name of the card matters, not the expansion symbol.
UR Mizzix of the Izmagnus ~~~ Build your own win-condition: Finite Spellslinging
UR Brudiclad, Telchor Engineer ~~~ We are the Borg. We will add your biological and technological distinctiveness to our own.
WUB Oloro, Ageless Ascetic ~~~ A Guide to dying slowly
UBR Marchesa, the Black Rose ~~~ Marchesa's undying Marionettes
RGW Mayael the Anima ~~~ All Hail the Big Chungus
GWU Chulane, Teller of Tales ~~~ Permanents Only ETB Shenanigans
BGU Sidisi, Brood Tyrant ~~~ Sidisi's Restless Servants
WUBRG The Ur-Dragon ~~~ Dragons eat your face
Former Rules Advisor
"Everything's better with pirates." - Lodge
(The Gamers: Dorkness Rising)
"Any sufficiently analyzed magic is indistinguishable from science."
(Girl Genius - Fairy Tale Theater Break - Cinderella, end of volume 8)
Only regular expansion sets ("block" sets such as Battle for Zendikar, Oath of the Gatewatch, Shadows Over Innistrad) and core sets (such as M15 or Origins) can add cards to the Modern format.
At most, Eternal Masters may possibly include some cards that are already Modern-legal.
UR Mizzix of the Izmagnus ~~~ Build your own win-condition: Finite Spellslinging
UR Brudiclad, Telchor Engineer ~~~ We are the Borg. We will add your biological and technological distinctiveness to our own.
WUB Oloro, Ageless Ascetic ~~~ A Guide to dying slowly
UBR Marchesa, the Black Rose ~~~ Marchesa's undying Marionettes
RGW Mayael the Anima ~~~ All Hail the Big Chungus
GWU Chulane, Teller of Tales ~~~ Permanents Only ETB Shenanigans
BGU Sidisi, Brood Tyrant ~~~ Sidisi's Restless Servants
WUBRG The Ur-Dragon ~~~ Dragons eat your face