Tron's threats are mostly large creatures (Bramble Wurm, Nyxborn Hydra, Writhing Chrysalis) backed by ramp artifacts, but none of our sideboard cards directly address this well — Vandalblast would hit their mana rocks but we have no clean way to fit it without cutting needed interaction, and our maindeck removal (Snuff Out, Cast Down, Cut Down) already handles their bigger threats adequately. The games are typically decided by disrupting their ramp or racing before Tron assembles, which our counterspells and card draw (Counterspell, Spell Pierce, Preordain, Lorien Revealed) are already built for. No changes recommended; the existing 75 is well-positioned to counter key ramp spells and remove their threats.