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Activated abilities of creatures cost {1} less to activate. This effect can't reduce the mana in that cost to less than one mana.
Activated abilities contain a colon. They’re generally written “[Cost]: [Effect].” Some keywords are activated abilities and will have colons in their reminder text.
Can’t reduce Snow mana costs.
It will never reduce any colored mana portion of an activation cost.
It will not add a {1} to abilities with no generic mana in their activation cost.
The cost reduction can be applied to additional costs.
