“Dimir Tempo aims to disrupt the opponent early with hand disruption via Thoughtseize and cheap interaction while cantripping into a fast, resilient threat like Murktide Regent or a flipped Tamiyo. The deck leverages free countermagic in Force of Will and Daze to protect its threats and tempo the opponent off their gameplan, often using Wasteland to deny mana while pressing an early advantage. Once a threat sticks, the deck pivots to a soft-lock role, answering anything dangerous while the clock runs out.”
Missing sideboard cards? The full 15-card sideboard runs about $397.
Buy sideboard on ManapoolOcelot Pride goes wide with 1/1 Cat tokens (and Ajani adds 2/1 Cat Warrior tokens), making Toxic Deluge and Massacre (which can be cast free off Swamp vs their Plains) excellent sweepers that clear out most of their small creatures and tokens for cheap. Barrowgoyf's deathtouch trades up into anything they commit while lifelink helps race their lifegain engine. Snuff Out can kill any of their nonblack creatures, but it is only a one-for-one against a go-wide plan, so it's replaceable with a sweeper plan here. Cut two Mishra's Bauble and a Ponder since we want fewer low-impact cantrips against their proactive curve.
This is the mirror match, so the game plan is to out-grind with efficient threats and removal rather than symmetrical cantrips that help both players equally. Barrowgoyf is excellent here since it scales with the shared graveyard-heavy gameplan and trades well with their Nethergoyf or Moonshadow. Toxic Deluge can reset the board if they get ahead on Bilbo or Bowmasters tokens, since we can size it to kill their small creatures while preserving our own bigger ones. Snuff Out whiffs on Moonshadow and Nethergoyf since both are black creatures, making it dead in this mirror and an easy cut for more impactful cards.
Sultai Aluren wants to resolve Show and Tell into Omniscience or cheat in Atraxa/Emrakul. Consign to Memory costs just {U} and counters a triggered ability or a colorless spell, so it can answer Atraxa's enters trigger, Acererak's triggers, Emrakul's extra-turn cast trigger, or a Lotus Petal. It can't counter Emrakul itself, since Emrakul can't be countered, and replicate only makes extra copies for extra mana. Force of Negation is a premium answer to Show and Tell, Aluren, or Omniscience on their turn, and can be cast for free by exiling a blue card. Daze is weak here since Ancient Tomb, City of Traitors, and Lotus Petal give them plenty of mana to pay for it, so we trim it for harder counters. Snuff Out has almost no good targets, since Atraxa and Acererak are black and Emrakul has protection from colored spells, making it replaceable with more proactive interaction.