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I'd also like to see the Windborn Muse and Ghostly Prison. Ghostly prison is just a white version of Propaganda, that one might be easy. I'm not a programer though (wish I was) so I don't know.

Since there's Deadly Grub, would Chronozoa be possible?

Also, since there's Maro, how about the Maro cycle from Saviors of Kamigawa?

Kiyomaro, First to Stand
Soramaro, First to Dream
Kagemaro, First to Suffer
Adamaro, First to Desire
Masumaro, First to Live

There's also only one Darksteel pulse (four missing) and two Echoing cards (three missing).

Echoing Calm
Echoing Courage
Echoing Ruin
Pulse of the Dross
Pulse of the Fields
Pulse of the Forge
Pulse of the Grid

Scepter of Dominance
Scepter of Fugue

Tower of Eons
Tower of Fortunes
Tower of Murmurs

Zhang Liao, Hero of Hefei