Mountain

Whenever a creature enters The Mountain, put a depth counter on it. when one or more creatures leave put a weight counter on them and roll a d20
17–18 | You gain 3 life and you may search your library for a basic land card, put it onto the battlefield tapped, then shuffle.
19–20 | Create two Treasure tokens and draw two cards.
Then, for each 10 depth counters on The Mountain, put additional weight counter on each creature that left this way.
When The Mountain has 50 or more depth counters on it,(E