Gruul Ramp plays a mix of efficient midsize creatures (Jewel Thief, Eldrazi Repurposer) and Breath Weapon's 2 damage sweep can pick off Arbor Elf and other small ramp pieces to disrupt their mana development, though it won't touch their bigger threats like Primordial Pachyderm or Avenging Hunter. Fanged Flames is cut in its favor since a one-time single-target answer is less valuable against a deck that generates continuous board presence. Skred is important here as our snow permanents accumulate, letting it scale up to trade with their larger creatures over the course of the game. Prioritize disrupting their acceleration (Arbor Elf, Wild Growth, Utopia Sprawl) early with Counterspell to slow their ramp into Avenging Hunter or Bramble Wurm-sized threats.