Seven mana's still a fortune for this sort of effect, but permanent creature exile on an ETB isn't something blue cards get to do often
Brawl Not Legal Vintage Not Legal Timeless Not Legal Commander Not Legal Pauper Not Legal Oathbreaker Not Legal Penny Not Legal Toolbox Buy This Card Notes and Rules Information for Standard Procedure: At the time of Unfinitys release, the following card sets are permitted in the Standard format: Innistrad: Midnight Hunt, Innistrad: Crimson Vow, Kamigawa: Neon Dynasty, Streets of New Capenna, and Dominaria United
Pirates 3 Subterranean Schooner [2lrfbTj6fGHJ4aDrXl7IIP] 3 Inti, Seneschal of the Sun [421g7bLdyXrmMEOEw7OBIJ] 1 Gastal Thrillroller [3rj9Si8ZWFcPWkQdgF86gq] 3 Fearless Swashbuckler [5wOdg5ZeC21eHQlViiLj9i] 2 Captain Howler, Sea Scourge [5sKl52XUsBYovTtQBtPZfV] 2 Magmatic Galleon [6AvV5y5fHsORcEMwSUSGg] 2 Spell Snare 4 Spyglass Siren [21k9FyIFEz1xpQ3NKerMKD] 4 Marauding Mako [2D12Pi8acw23rvAJ3dpcnr] 4 Burst Lightning [89cx2z1qwO7jcnquIiomT] 4 Scrounging Skyray [4egjzEonK7U51Ceh9c35pX] 2 Staunch Crewmate [62GRh9jy9sU5oOWfzkPZkd] 2 Broadside Barrage [16bKvbxzkfGosSLRbPoXke] 4 Secluded Courtyard [5hh5TYx7EBTWIjnE4wE1gE] 4 Swiftwater Cliffs [2N8PNtccDhAygcd1ftPJtR] 8 Island 8 Mountain Tokens : 5x Map // Treasure tokens Ahoy there
That said, I do feel this flavor is squarely in blue's color pie
2022-10-07 Cascade triggers when you cast the spell, meaning that it resolves before that spell
