Royalties Check of Royalty

Invest (Rather than cast this card from
your hand, you may pay {1} and exile it.
At the beginning of your upkeep, add a
time counter. You may cast Greg's Royalties
Check of Royalty, reducing its mana cost
by the number of time counters on it.)
Create 10 colorless Treasure artifact tokens
with "{t}, Sacrifice this artifact: Add one
mana of any color."