Buy @ TCGplayer
{1}, {T}, Sacrifice Moonsilver Key: Search your library for an artifact card with a mana ability or a basic land card, reveal it, put it into your hand, then shuffle.
Most mana abilities found on artifacts are activated mana abilities. An activated mana ability is an activated ability that could produce mana as it resolves, does not require a target, and isn't a loyalty ability.
Some artifacts, such as Gauntlet of Power, have triggered mana abilities. A triggered mana ability is a triggered ability that could produce mana as it resolves, triggers on the resolution of an activated mana ability or on mana being added, and doesn't require a target.
