Obsanius of the Forgeborn

+1: Create a 3/3 artifact creature token of Construct or Golem type with “When this creature enters play, it may gain the color of your choice"
-2: Target four lands, the next time they produce mana, the produce one additional mana of any type they could produce.
-6: Emblem with: At the beginning of your end step, create a 9/9 Golem artifact creature with “When this creature enters play, it may gain the color.