Mountain

Jiang Yanggu

+1: Target creature gets +2/+2 until end of turn.
−1: If you don't control a creature named Mowu, create Mowu, a legendary 3/3 green Dog creature token.
−5: Until end of turn, target creature gains trample and gets +X/+X, where X is the number of lands you control.

Fire-Omen Crane

Flying (This creature can't be blocked except by creatures with flying or reach.)
Whenever this creature attacks, it deals 1 damage to target creature an opponent controls.

Screeching Phoenix

Flying
{2}{R}: Creatures you control get +1/+0 until end of turn.

Giant Spider

Reach (This creature can block creatures with flying.)

Breath of Fire

Breath of Fire deals 2 damage to target creature.

Confidence from Strength

Target creature gets +4/+4 and gains trample until end of turn. (It can deal excess combat damage to the player or planeswalker it's attacking.)

Cleansing Screech

Cleansing Screech deals 4 damage to any target.

Sacred White Deer

{3}{G}, {T}: You gain 4 life. Activate only if you control a Yanggu planeswalker.

Ferocious Zheng

Hardened-Scale Armor

Enchant creature
Enchanted creature gets +3/+3.

Journey for the Elixir

Search your library and graveyard for a basic land card and a card named Jiang Yanggu, reveal them, put them into your hand, then shuffle.

Aggressive Instinct

Target creature you control deals damage equal to its power to target creature you don't control.

Timber Gorge

This land enters tapped.
{T}: Add {R} or {G}.

Reckless Pangolin

Whenever this creature attacks, it gets +1/+1 until end of turn.

Earthshaking Si

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)