Doubling Cube

Blinkmoth Urn + Doubling Cube = HOLY CRAP - now play your second Blinkmoth

If this card was great before...its 10 times better now since new rules did away with mana burn.

Great card for massive fireballing or any (X) cards especially with Upwelling, but be weary of enchantment destruction, they kill Upwelling and you'll take a massive burn.

I think this is a great addition to a deck, and it does massive damage when coupled with hurricane or a great life booster when coupled with stream of life

I can't believe that no one has written a review of this card so far! It has so many uses play it when you dont have the manna to play big creatures or use it with rude awakening and you can get alot of creatures or manna.

This card is very interesting. Nobody else has noted this, but Omnath, Locus of Mana goes great with this card. With Omnath storing all that mana you can attack with ridiculous power or use the mana to play Eldrazi or other ridiculously high-mana costing spells.

Also the above person forgot to mention how great the card works with Door To Nothingness and/or Upwelling. Dont steal my deck idea! lol, just kidding, I know Im not the only one who came up with this. Also useful for playing multiple Nephilims from Guildpact or any of the Bringers from Fifth Dawn.

Doubling cube can do interesting things, but it's use as mana acceleration for X spells is of dubious value. In order for the Cube to actually do anything. it needs to have at least 7 mana to work with. I would rather focus on fixed value spells, like Char or Lightning Helix, which tend to be more efficient than X spells. Still, there's always Demonfire.