Okay, I know its not a goblin or a goblin payoff per se, but Purphoros, God of the Forge decks in EDH are often built as goblin token decks, seeing as each token you put in play can dome your opponents for 2
The fight mechanic, primary in green, is a great creature answer for green provided, of course, it has the creatures to fight with
While you don't get the most life from the Finks it comes in the perfect package for when you want life gain
There are also several ways to combo with Entity, including this clever and convoluted one involving Worldspine WurmWorldspine Wurm and activating for zero mana: Or, you could just make your creatures infinitely large with Wirewood SymbioteWirewood Symbiote and Priest of TitaniaPriest of Titania
Borderless Battle Pose Cards Your favorite Avatar: The Last Airbender characters are showing off their bending abilities on borderless battle pose cards