Izzet Prowess aims to close the game quickly with Monastery Swiftspear and Dragon's Rage Channeler backed by cheap pump spells, so Brotherhood's End is your most impactful sideboard card — it sweeps their entire board of 1-toughness creatures at instant speed. Endurance comes in as a flash blocker with reach that also disrupts Dragon's Rage Channeler's delirium count, buying critical time to land Crashing Footfalls and stabilize. Mystical Dispute replaces Force of Negation as the more mana-efficient counter in this matchup, stopping Preordain, Expressive Iteration, and post-board Consign to Memory for a single blue mana. Force of Negation and Subtlety are trimmed because Force of Negation is weak against their low-to-the-ground noncreature spells and Subtlety's tempo bounce is insufficient against the volume of cheap threats they deploy. Your Leyline of the Guildpact and Leyline Binding package remains the backbone of your game plan, as protection from monocolored shuts off Lightning Bolt and Lava Dart targeting your Rhino tokens.

Boros Energy is a fast, wide aggro deck that races with energy-synergy creatures like Guide of Souls, Ocelot Pride, and Ragavan while using Goblin Bombardment as a sacrifice outlet to convert tokens and creatures into direct damage before your rhinos can stabilize. Post-board, Drannith Magistrate is their most dangerous threat as it completely shuts off cascade, so keeping three Force of Negation to protect your Violent Outburst and Shardless Agent on the critical turn is essential. Brotherhood's End efficiently sweeps their small-power creature suite in one sorcery, and Force of Vigor destroys Goblin Bombardment or a post-board Vexing Bauble at instant speed off-pitch. Tishana's Tidebinder provides a flash blocker that stonewalls Ragavan while countering a key energy trigger or Goblin Bombardment activation on entry; Leyline Binding remains a premium answer to any threat they stick, and landing Crashing Footfalls establishes a 4/4 rhino presence that blanks most of their attackers.

Goryo's Vengeance is a combo deck that wins by reanimating Atraxa or Griselbrand via Goryo's Vengeance or Ephemerate loops, often fueled by Psychic Frog and Fallaji Archaeologist filling the graveyard. Endurance is your most important answer, resetting their graveyard at instant speed and invalidating their entire game plan mid-combo. Tishana's Tidebinder can lock down Goryo's Vengeance or Ephemerate triggers, buying critical time. Mystical Dispute comes in as cheap countermagic against their blue permission and key spells like Force of Negation. Leyline Binding and Scion of Draco are trimmed since this matchup is decided before a board state develops, and the interaction suite is more valuable than battlefield permanents.