Intersect the Glimmervoid

When Intersect the Glimmervoid enters the
battlefield, each player may spend {2} to put
a 1/1 Myr token with indestructible onto the
battlefield under that player's control.
At the beginning of each player's upkeep, that
player puts a Glimmervoid land token with "At
the beginning of the end step, if you control no
artifacts, sacrifice Glimmervoid. {T}: Add one
mana of any color." onto the battlefield.