Heartstone
Artifact
Activated abilities of creatures cost less to activate. This effect can't reduce the mana in that cost to less than one mana.
Legalities
- brawl: banned
- commander: legal
- legacy: legal
- modern: legal
- pauper: legal
- pioneer: banned
- standard: banned
- vintage: legal
Rulings
- 2004-10-04:
The cost reduction can be applied to additional costs.
- 2004-10-04:
It will not add a {1} to abilities with no generic mana in their activation cost.
- 2004-10-04:
It will never reduce any colored mana portion of an activation cost.
- 2006-07-15:
Can’t reduce Snow mana costs.
- 2016-06-08:
Activated abilities contain a colon. They’re generally written “[Cost]: [Effect].” Some keywords are activated abilities and will have colons in their reminder text.