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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.
Abilities, attacks, weakness & resistance
Other cards from Stronghold
Heartstone (STH-134) is an uncommon artifact from the Stronghold set. It reduces the generic portion of activated abilities of creatures by {1}, but never reduces any colored mana portion or lowers a cost below one mana. The reduction can apply to additional costs but cannot make abilities free and does not affect Snow mana costs.
Catalog pricing data as of 17 Apr 2026, 11:51
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