Goblins is a fast, aggressive deck that wins through Goblin Lackey and Goblin Warchief accelerating a swarm of creatures, with Rishadan Port and Wasteland disrupting your mana. Decree of Silence is far too slow and expensive against their aggressive curve, and Mana Leak loses value quickly once they have multiple lands or a Goblin Warchief providing cost reduction. Exalted Angel provides a stabilizing life buffer that is difficult for them to remove efficiently, buying you the time needed to assemble the Replenish combo. Meddling Mage can name Goblin Lackey on the play or Goblin Ringleader to cut off their card advantage engine, significantly slowing their development. Your primary goal is to survive long enough to resolve Opalescence plus Parallax Wave, which locks them out of attacking; Seal of Cleansing handles any Pyrostatic Pillar they may bring in.