Sisay Jegantha Nothing

[Flucker360]

Sisay Jegantha Nothing

[jlutzxinc]

I see where this is going, but I don't think it's that efficient; do you really feel you need TWENTY-THREE mana rocks?  You're using up a LOT of valuable Deck space.

Hanna, Ship's Navigator can put Door to Nothingness back into your hand, and Ashnod the Uncaring or Tawnos, Urza's Apprentice can copy the Door's ability.

Legendaries with pump effects (like Arvad the Cursed or Heroes' Podium) can help you cheat out pricier cards; alternatively, why not use Skyship Weatherlight in place of Planar Bridge?

Ramos, Dragon Engine can pay for the Door by himself, but you might need to change some other cards around to better set him up.

Those are just a few ideas I had off the top of my head; I'm sure others will be better able to expand than I can.