An Example

Sacrifice a creature: Add .

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.

Imprint — When this artifact enters, you may exile an artifact card from your hand. , : Create a token that's a copy of the exiled card. X is the mana value of that card.

Flying : This creature gets +1/+0 until end of turn. : Destroy each nonland permanent with mana value X whose controller was dealt combat damage by this creature this turn. Activate only once each turn.