mtg mountain card | Secret Lair open) if (element.class Mountain [SGL-MTG-SOS-279-ENF]

Whenever you move him to a location, Cubby gets three points of strength

Glasspool Mimic / Glasspool Shore One of the best MDFCs for Commander, Glasspool Mimic is Mirror Image with two upsides: It can be played as Glasspool Shore, and it becomes a rogue

Paying life for anything is pretty scary when you first start

Scene cards Gollum, Frodo, The One Ring, and Sam will all feature in a Borderless Scene

If your tenth permanent enters the battlefield and then a permanent leaves the battlefield immediately afterwards (most likely due to the "legend rule" or due to being a creature with 0 toughness), you get the city's blessing before it leaves the battlefield