The Sapphrite Crown

Whenever a token is created under your
control, you may create an Earthen Spike
token with, "{t}: Add one mana of any color
to your mana pool. Earthen Spike doesn't
untap during your next untap step."
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"I have seen the Sapphrite Crown adorn
the head of only one Lord of the Deep,
and he takes to many shiny things."