Blackcleave Goblin

Haste
Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)

Festering Goblin

When Festering Goblin dies, target creature gets -1/-1 until end of turn.

Warteye Witch

Whenever Warteye Witch or another creature you control dies, scry 1.

Shambling Goblin

When Shambling Goblin dies, target creature an opponent controls gets -1/-1 until end of turn.

Swamp

Warren Pilferers

When Warren Pilferers enters, return target creature card from your graveyard to your hand. If that card is a Goblin card, Warren Pilferers gains haste until end of turn.

Splatter Goblin

When Splatter Goblin dies, target creature an opponent controls gets -1/-1 until end of turn.

Boggart Birth Rite

Return target Goblin card from your graveyard to your hand.

Hornet Harasser

When Hornet Harasser dies, target creature gets -2/-2 until end of turn.

Frogtosser Banneret

Haste
Goblin spells and Rogue spells you cast cost {1} less to cast.

Facevaulter

{B}, Sacrifice a Goblin: Facevaulter gets +2/+2 until end of turn.