Doubling Season [Ravnica: City of Guilds] Human Designer if you haven't added mana

if you haven't added mana with this ability this turn

Sacrifice it at the beginning of the next end step

god of ambition

Set: Fourth Edition Type: Artifact Rarity: Rare Cost: {1} Mana Vault doesn't untap during your untap step

" —Azguri

Doubling Season [Ravnica: City of Guilds] Human Designer if you haven't added manaSet: Ravnica: City of Guilds Type: Enchantment Rarity: Rare Cost: {4}{G} If an effect would create one or more tokens under your control, it creates twice that many of those tokens instead. If an effect would put one or more counters on a permanent you control, it puts twice that many of those counters on that permanent instead.