Goblin Lackey

Whenever Goblin Lackey deals damage to a player, you may put a Goblin permanent card from your hand onto the battlefield.

At the first sign of enemy scouts, Jula grinned and strapped on his diplomacy helmet.

Mystery Booster 2

Secret Lair Drop

"Danger" was supposed to be babysitting, so "Little Angel" became the newest member of the team.

Vintage Masters

A Goblin permanent card is an artifact, creature, land, and/or enchantment card with the creature type "Goblin". Usually such cards will be creatures in addition to any other types, but they may be kindred instead. For example, you could put Boggart Shenanigans onto the battlefield with this effect.