Mainboard (60)
Creatures (25)
Instants (2)
Sorceries (11)
Planeswalkers (1)
Dimir Tempo is a disruption-heavy tempo deck that pairs Thoughtseize and Wasteland with a fast clock from Tamiyo, Orcish Bowmasters, and Murktide Regent. Your plan is to push through their interaction with explosive Natural Order or Craterhoof lines before they can strand your mana. Snuff Out provides free interaction against Tamiyo and Murktide without tapping out, and Abrupt Decay cleanly answers Bowmasters and Kaito while being uncounterable. Shave the lowest-impact utility creatures — Springheart Nantuko, Icetill Explorer, Quirion Ranger, and Birds of Paradise — as they underperform in a game where Wasteland punishes your land count and Orcish Bowmasters punishes small bodies. Protect your Wight of the Reliquary and hierarchs as the primary mana accelerants; a turn-two or three Natural Order or Green Sun's Zenith for Craterhoof is typically game-ending before their countermagic can fully stabilize.
Sneak and Show aims to cheat Emrakul or Atraxa into play as early as turn one via Sneak Attack or Show and Tell, so your primary goal is to establish a faster Natural Order or Green Sun's Zenith line while disrupting their setup. Force of Vigor comes in as free interaction against Sneak Attack and any artifact acceleration like Lotus Petal or City of Traitors, dramatically slowing their ability to execute the combo. Snuff Out provides free permanent removal to answer threats that resolve through Show and Tell or Sneak Attack without requiring you to tap mana during your own development. Collector Ouphe shuts off Lotus Petal and Simian Spirit Guide, significantly taxing their fastest draws. Thoughtseize is reasonable but your hand disruption is less reliable against their permission suite and cantrip density, and your clock is strong enough that racing is often correct.
Oops! All Spells is a pure combo deck that wins by milling its entire library with Balustrade Spy or Undercity Informer, then returning creatures from the graveyard to eventually cast Thassa's Oracle with an empty library. Your primary disruption is Thoughtseize, which you should fire off as early as possible to strip their key pieces like Dark Ritual, Cabal Ritual, or the mill payoff itself. Endurance and Faerie Macabre come in as graveyard hate — Faerie Macabre is especially valuable because it can be pitched for free at instant speed to exile Narcomoeba or Bridge from Below mid-combo, potentially breaking up their chain. Endurance is a resilient threat that can reset their graveyard if they've already started building it up, and it's tutorable via Green Sun's Zenith. Trim the expensive, slow finishers like Craterhoof, Atraxa, Icetill Explorer, and Quirion Ranger since this is a race against a turn-1 or turn-2 kill and those cards are irrelevant if you're not disrupting their combo in the first two turns.