Rhystics analysis of Theros was a big inspiration for my own post, so it feels fitting to share it here
Vampires have sacrifice and discard synergies on the go and this works with both of them
They may be good in very specific or very niche situations but you would almost never seriously consider putting them in a competitive deck
On the subject of Odyssey lands, this card looks like it would also be pretty good with the filter lands from that set
Why it stands out: EU-based shipping origin : Helpful if youre tired of international transit roulette
Number 321 Language English Legal Formats Commander, Legacy, Modern, Vintage Not Legal Formats Alchemy, Brawl, Competitive Brawl, Historic, Pauper, Pioneer, Standard, Timeless Rulings (12/1/2004) Doubling Cube's ability is a mana ability