Boilland_destructionBudget$0.20Very close functional match: a red sorcery that punishes blue by wiping out Islands, but it costs less and is even more efficient at the same role.
Wake of Destructionland_destructionBudget$0.55Another red mass land-destruction spell that can devastate a basic land type, serving a similar anti-mana-base role. It is narrower in some games but can be more devastating when it hits.
Flashfiresland_destructionBudget$0.16Same broad function of destroying a specific basic land type across the table, though it targets Plains instead of Islands. It fills the same color-hate land destruction niche.
Tectonic Instabilityland_destruction$2.73A red enchantment that repeatedly disrupts mana bases by forcing land sacrifice when tapped, functioning as ongoing land hate rather than a one-shot wipe.
Blood Moonutility$8.90A classic red anti-nonbasic land effect that attacks blue mana bases indirectly by shutting off utility lands. It is not a direct Island destroyer, but it serves the same disruptive role.
Magus of the Moonutility$4.89Creature version of Blood Moon that performs the same mana-base disruption. It is often a functional budget or redundancy piece in the same strategy.
Ruinationland_destructionBudget$0.74Another red land-hate spell that can heavily punish greedy mana bases, especially nonbasic-heavy blue decks. It is broader than Boiling Seas but fills a similar disruptive slot.
From the Ashesland_destruction$1.45Mass land destruction aimed at nonbasic lands, often used to cripple multicolor control decks. It is less specifically anti-Island, but the strategic purpose is similar.