Tactical Aplications

, : Create a 0/1 colorless Prism artifact creature token. Sacrifice a Prism token: Add one mana of any color.

If an effect would create one or more tokens under your control, it creates twice that many of those tokens instead. If an effect would put one or more counters on a permanent you control, it puts twice that many of those counters on that permanent instead.

Creatures don't untap during their controllers' untap steps. Whenever a creature enters, untap all creatures.

Activated abilities of creatures you control cost less to activate. This effect can't reduce the mana in that cost to less than one mana.