Space Joker is a trinket in TBoI: Regambled, a mod for The Binding of Isaac.

UNCOMMON | Base price: 5 coins

This Joker is only available while playing as Jimbo or Tainted Jimbo.

Jimbo:
• 1 in 20 chance to upgrade the level of the played card's rank.
• Gains an additional 1 in 20 chance per stars item held

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Tainted Jimbo: Same effect as base game.

• Check out the trinket description on the mod's external Wiki.
• Download TBoI: Regambled from the Steam Workshop.