Hordeling Outburst

Create three 1/1 red Goblin creature tokens.

Witty Roastmaster

Alliance — Whenever another creature you control enters, this creature deals 1 damage to each opponent.

Dragon Fodder

Create two 1/1 red Goblin creature tokens.

Impact Tremors

Whenever a creature you control enters, this enchantment deals 1 damage to each opponent.

Mountain

Panharmonicon

If an artifact or creature entering causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time.

Goblin Instigator

When this creature enters, create a 1/1 red Goblin creature token.

Krenko's Command

Ral's Reinforcements

Create two 1/1 blue and red Elemental creature tokens.

Young Pyromancer

Whenever you cast an instant or sorcery spell, create a 1/1 red Elemental creature token.

Altar of the Brood

Whenever another permanent you control enters, each opponent mills a card.

Mechanized Warfare

If a red or artifact source you control would deal damage to an opponent or a permanent an opponent controls, it deals that much damage plus 1 instead.