Mountain

Bane of Progress

When Bane of Progress enters, destroy all artifacts and enchantments. Put a +1/+1 counter on Bane of Progress for each permanent destroyed this way.

Baloth Woodcrasher

Landfall — Whenever a land you control enters, Baloth Woodcrasher gets +4/+4 and gains trample until end of turn. (It can deal excess combat damage to the player or planeswalker it's attacking.)

Nature's Lore

Search your library for a Forest card, put that card onto the battlefield, then shuffle.

Forest

Raised by Giants

Commander creatures you own have base power and toughness 10/10 and are Giants in addition to their other types.