how do we add new cards to the list

[beerboy]

There are new cards in the legends/legends masterworks series
15 (Rg) 1 •Legolas, Of the Woodland Realm CompanionElven
15 (Rg) 2 •Gandalf, Powerful Guide CompanionGandalf
15 (Rg) 3 •Quickbeam, Hastiest of All Ents CompanionGandalf
15 (Rg) 4 •Aragorn, Thorongil CompanionGondor
15 (Rg) 5 •Madril, Defender of Osgiliath CompanionGondor
15 (Rg) 6 •Éomer, Horsemaster CompanionRohan
15 (Rg) 7 •Úlaírë Attëa, Desirous of Power MinionWraith
15 (Rg) 8 •Úlairë Lemenya, Eternally Threatening MinionWraith
15 (Rg) 9 •Úlairë Nelya, Fell Rider MinionWraith

and then there is the Wraith Collections set it isn't even on the list of sets.
16 R 1 •Barrow-wight Stalker MinionWraith
16 R 2 Candle Corpes MinionWraith
16 R 3 •Covetous Wisp MinionWraith
16 R 4 Dead Faces MinionWraith
16 R 5 •Spirit of Dread MinionWraith
16 R 6 •Undead of Agmar MinionWraith

[beerboy]

according to the deciper card lists for the promotionals it is completely missing the Nine riders collection and so other cards the list stops at 106 but deciphers site goes up to 117 and 2 tengwar cards ontop of that
the cards that are missing are :
0 P 107 Guard of the White Tree (F)
0 P 108 •The Witch-king, Captain of the Nine Riders (F)
0 P 109 •Úlairë Attëa, Second of the Nine Riders (F)
0 P 110 •Úlairë Nelya, Third of the Nine Riders (F)
0 P 111 •Úlairë Cantëa, Fourth of the Nine Riders (F)
0 P 112 •Úlairë Lemenya, Fifth of the Nine Riders (F)
0 P 113 •Úlairë Enquëa, Sixth of the Nine Riders (F)
0 P 114 •Úlairë Otsëa, Seventh of the Nine Riders (F)
0 P 115 •Úlairë Toldëa, Eighth of the Nine Riders (F)
0 P 116 •Úlairë Nertëa, Ninth of the Nine Riders (F)
0 P 117 •Faramir, Prince of Ithilien (F)
5 R 116 •Sting, Baggins Heirloom (Tengwar)
7 R 79 •Anduril, Flame of the West (Tengwar)
Úlairë Nelya, Black Hunter 0 P 99 Foil Card
The Mouth of Sauron, Messenger of Mordor 0 P 100 Foil Card
0 P 62 •Gimli, Dwarven Delegate
0 P 63 •Arwen, Maiden of Rivendell
0 P 64 •Gandalf, Stormcrow
0 P 66 •Éomer, Forthwith Banished
0 P 67 •Frodo, Mr. Underhill
0 P 103 •Úlairë Otsëa, Black Specter (F)