Hidden Herd

When an opponent plays a nonbasic land, if Hidden Herd is an enchantment, Hidden Herd becomes a 3/3 Beast creature.

Forest

Gruul Guildgate

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

Symbiotic Beast

When Symbiotic Beast dies, create four 1/1 green Insect creature tokens.

Chain of Acid

Destroy target noncreature permanent. Then that permanent's controller may copy this spell and may choose a new target for that copy.

Familiar Ground

Each creature you control can't be blocked by more than one creature.

Shaleskin Bruiser

Trample
Whenever Shaleskin Bruiser attacks, it gets +3/+0 until end of turn for each other attacking Beast.

Arboreal Grazer

Reach
When Arboreal Grazer enters, you may put a land card from your hand onto the battlefield tapped.

Longhorn Firebeast

When Longhorn Firebeast enters, any opponent may have it deal 5 damage to them. If a player does, sacrifice Longhorn Firebeast.

Mountain

Tephraderm

Whenever a creature deals damage to Tephraderm, Tephraderm deals that much damage to that creature.
Whenever a spell deals damage to Tephraderm, Tephraderm deals that much damage to that spell's controller.

Krosan Warchief

Beast spells you cast cost {1} less to cast.
{1}{G}: Regenerate target Beast.

Skyshroud Cutter

If you control a Forest, rather than pay this spell's mana cost, you may have each other player gain 5 life.

Vitality Charm

Choose one —
• Create a 1/1 green Insect creature token.
• Target creature gets +1/+1 and gains trample until end of turn.
• Regenerate target Beast.

Wild Growth

Enchant land
Whenever enchanted land is tapped for mana, its controller adds an additional {G}.

Aether Charge

Whenever a Beast you control enters, you may have it deal 4 damage to target opponent or planeswalker.