Mono-Green Landfall floods the board with mana dorks and landfall payoffs that quickly exceed mana value 2, making Requiting Hex weak beyond the first turn or two. Get Lost and Pyrrhic Strike give you clean answers to bigger threats like Bristly Bill or Mightform Harmonizer that Requiting Hex can't touch. Cruelclaw's Heist strips their best card from hand before it resolves, disrupting their sequencing. Keep the lifegain shell intact since it races well against their go-wide plan.