This matchup is a race against their colorless Eldrazi threats and land-based engine (Urza's Saga, Eldrazi Temple, Ugin's Labyrinth). Unholy Heat is excellent removal for Basking Broodscale, and once we hit delirium it deals 6 damage, which is enough to kill Sowing Mycospawn too. Meltdown answers their Urza's Saga Construct tokens and Talisman, while Tormod's Crypt disrupts Malevolent Rumble's graveyard value and can strip fuel before Emrakul, the Promised End gets cheaper. Cut low-impact pump/burn that doesn't trade well with their big bodies: Mutagenic Growth, Lava Dart, and Violent Urge are the weakest cards against 2/2s and bigger that don't die to 1 damage.

Rakdos Delirium fields small, graveyard-fueled threats like Stitcher's Supplier and Nethergoyf that often sit at four or more card types in the graveyard, making Unholy Heat's delirium upgrade to 6 damage very relevant against bigger threats like Nethergoyf or Detective's Phoenix. Spell Snare is live against their two-mana spells such as Orcish Bowmasters. This is a fast, interactive matchup where both decks race, so we keep almost our full proactive plan and just upgrade removal quality — Lava Dart's 1 damage is often too small against their delirium-boosted creatures.

Esper Control's game plan hinges on sweepers, removal, and planeswalkers like Solitude, Wrath of the Skies, Supreme Verdict, Narset, and Teferi. Consign to Memory only counters triggered abilities and colorless spells, so it can't stop colored spells like Wrath of the Skies or Solitude itself. It can counter Solitude's enter trigger (including when Solitude is evoked) and colorless spells such as Isochron Scepter, so bring it in mainly to protect our creatures from Solitude's exile effect. Mystical Dispute is cheap (often just {U}) against their many blue spells like Jace, the Mind Sculptor and Teferi, Time Raveler. Spell Snare only hits spells with mana value 2, so it snipes plays like Consult the Star Charts or Isochron Scepter, not three-mana planeswalkers like Narset, Parter of Veils. Cut the combat-trick-style cards that do little against a deck full of Solitude, Supreme Verdict, and Wrath of the Skies since our creatures will rarely survive to use pump effectively.