Izzet Spellementals lives on cantrips filling the graveyard to discount Hearth Elemental and Eddymurk Crab, and on triggered enters-the-battlefield effects from Eddymurk Crab and Sunderflock; Torpor Orb shuts off the Crab's tap-two trigger and Sunderflock's bounce trigger entirely. Soul-Guide Lantern exiles cards from their graveyard to slow the Hearth Elemental and Eddymurk Crab cost reduction. Shared Roots and Sapling Nursery are the slowest, most reactive mainboard pieces and come out since this matchup rewards proactive disruption over incremental ramp. Keep the landfall creature suite online to race before the Elemental engine takes over.

UR Aggro wants to chain cheap cantrips into Slickshot Show-Off and prowess threats like Elusive Otter while using Burst Lightning for removal and reach; Surrak, Elusive Hunter is a resilient 4/3 trampler that can't be countered and survives a single unkicked Burst Lightning. Soul-Guide Lantern exiles graveyard cards to slow Eddymurk Crab's cost reduction and to keep Flow State from finding both an instant and a sorcery in their graveyard. Shared Roots is too slow against this aggressive clock, and Keen-Eyed Curator's upside is minimal since the opponent's graveyard rarely has four card types early. Prioritize blocking efficiently and racing with landfall threats before they chain spells into lethal.

Dimir Midrange relies on enters-the-battlefield value from Floodpits Drowner and Dream Beavers along with removal like Bitter Triumph and Requiting Hex; Torpor Orb turns off those triggers, denying tempo and card advantage. Surrak, Elusive Hunter is uncounterable, dodging Spell Snare and Tishana's Tidebinder's ability-countering mode, and tramples past their 2/1 and 4/4 bodies. Shared Roots and Sapling Nursery are cut since this is a grindy matchup where proactive, resilient threats outperform slow ramp pieces. Watch for Kaito, Bane of Nightmares as a recurring threat that dodges sorcery-speed removal.