Redwood Hammer

You must pitch at least one Earth card while paying for this card’s resource cost to meet the static effect condition. Using resources from previously pitched Earth cards (i.e. pitched before playing this card) does not meet this condition.

If you pitch an Earth card to attack with this, the condition has been met even if the Earth card you pitched is removed from the pitch zone (e.g. Potion of Deja Vu).