Mountain

Frilled Deathspitter

Enrage — Whenever Frilled Deathspitter is dealt damage, it deals 2 damage to target opponent or planeswalker.

Bloodrush — {R}, Discard Skinbrand Goblin: Target attacking creature gets +2/+1 until end of turn.

Whenever another red creature you control enters, Foundry Street Denizen gets +1/+0 until end of turn.

Reach
{T}: Panicked Altisaur deals 2 damage to each opponent.

Create two 1/1 red Goblin creature tokens.

Enchant creature
When War Squeak enters, target creature an opponent controls can't block this turn.
Enchanted creature gets +1/+1 and has haste.

Bloodrush — {R}, Discard Rubblebelt Maaka: Target attacking creature gets +3/+3 until end of turn.

When Alania's Pathmaker enters, exile the top card of your library. Until the end of your next turn, you may play that card.

Lightning Strike deals 3 damage to any target.

{R}, {T}: Spikeshot Goblin deals damage equal to its power to any target.

When Goblin Arsonist dies, you may have it deal 1 damage to any target.

Bathe in Dragonfire deals 4 damage to target creature.