Gemstone Mine [Weatherlight] Human Artificer contains 96 metal tokens and

contains 96 metal tokens and 300 cards

you'll never know if you will cause a mission to fail or simply be giving your identity away

Set: Innistrad Type: Enchantment Rarity: Rare Cost: {3}{G} If an effect would create one or more tokens under your control

from Tarot cards and the I Ching to crystal gazing

and threats

Gemstone Mine [Weatherlight] Human Artificer contains 96 metal tokens andSet: Weatherlight Type: Land Rarity: Uncommon Gemstone Mine enters the battlefield with three mining counters on it. {T}, Remove a mining counter from Gemstone Mine: Add one mana of any color. If there are no mining counters on Gemstone Mine, sacrifice it.