The Shaper Of Sands

This creature's power is equal to the amount
of {c} or {r} you produce.

At the beginning of your upkeep, you may tap up to
three Eldrazi you control. If you do, add {r}{r}or{c}{c} to your mana pool.

{r}{r}, {t}: Prevent all combat damage that would be
dealt this turn to you or Eldrazi you control.