Ruin Grinder

Menace
When Ruin Grinder dies, each player may discard their hand and draw seven cards.
Mountaincycling {2} ({2}, Discard this card: Search your library for a Mountain card, reveal it, put it into your hand, then shuffle.)

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Commander 2021

Menace
When Ruin Grinder dies, each player may discard their hand and draw seven cards.
Mountaincycling {2}

Players decide and announce in turn order, starting with the active player, whether or not they want to discard their hand. Then, all players who chose to do so discard their hands and draw seven cards. Players later in the turn order will know if players before them are discarding, but they don’t get to see what those players will discard to help them decide whether to discard themselves.