Jund Wildfire is a grindy value deck that sacrifices its own Bridges and artifact lands to draw cards with Cleansing Wildfire and Ichor Wellspring, then recurs Refurbished Familiar repeatedly for board presence. Dust to Dust is your best sideboard card here — exiling two artifacts means Refurbished Familiar and an artifact land go away permanently, breaking the recursive loop that makes the deck so hard to race. Destroy Evil handles Writhing Chrysalis (which regenerates) and Refurbished Familiar on the way in, giving you additional exile effects. Your Counterspell suite keeps Cleansing Wildfire from resolving in key turns, which cuts off their draw engine; prioritize countering that over anything else. Dispel is weak since their spells are mostly sorceries and creatures, and Union of the Third Path is too slow in a matchup where they're generating incremental advantage every turn.