Assessor Foxcurran VI

Shroud
At the beginning of your upkeep, tap {g/u}{g/w} or tap Assessor Foxcurran VI.
Assessor Foxcurran VI does not untap during your untap step.
{t}{x}: Create X 1/1 dog tokens and X artifact tokens with, "Sacrifice this artifact: Add {u},{g}, or {w} to your mana pool."