The opposing list is a red-green Goblins deck, but nearly all of its threats are red, so treat Circle of Protection: Red as live insurance against its many damage sources and aggressive red creatures. It stops combat damage as well as direct damage, including from Siege-Gang Commander's red Goblin tokens, though each activation only covers the next damage from one chosen source, so keep mana open. Disenchant has few profitable targets in a creature-heavy aggro shell, so trim two copies in favor of the Circles. Wrath of God remains excellent and should stay in at full count to reset the board against the Goblin horde. Keep Swords to Plowshares as premium removal for Goblin Piledriver or Siege-Gang Commander, and prioritize stabilizing behind Standstill and Mishra's Factory blockers.