Sultai Control has very few early creatures and a heavy artifact/enchantment-light, spell-heavy plan built around Stock Up, Consult the Star Charts, and big finishers like Ugin, Eye of the Storms, so Spell Snare and Avatar's Wrath have few good targets. Disdainful Stroke counters Ugin, Eye of the Storms, The Coming of Galactus, or Wan Shi Tong outright, while The Unagi of Kyoshi Island is a resilient flash threat that dodges their removal and punishes their card draw with Stock Up and Consult the Star Charts. Annul is a speculative include against Quandrix Charm or any artifacts they bring, but is only worth boarding in if you see enough targets. Keep Aven Interrupter and No More Lies as your primary tools to fight through their removal-heavy, high-value spells.