Missing sideboard cards? The full 15-card sideboard runs about $35.11.
Buy sideboard on ManapoolDimir Tempo leans on Thoughtseize and Force of Will/Daze to strip and counter our plan while Wasteland cuts our fixing, so Leyline of Sanctity (free from an opening hand) makes us immune to their targeted discard like Thoughtseize. Into the Flood Maw answers a resolved Murktide Regent or Tamiyo, Inquisitive Student cheaply, buying time to assemble Dread Return or Bridge from Below triggers. Bridge from Below is weaker here since they have little incidental removal to fuel Zombie tokens off our own creatures dying, so we trim some copies for interaction. Unmask comes down slightly since our own hand disruption is less impactful against a deck that plays around it with free counters.
Ocelot Pride Midrange builds a wide token board with Ocelot Pride, supported by Guide of Souls, while Swords to Plowshares picks off our bigger creatures. Into the Flood Maw is efficient at bouncing Ajani, Nacatl Pariah or a key token-generating threat like Ocelot Pride itself to reset their engine for a turn. Bridge from Below is less reliable since they can remove our creatures with exile-based Swords to Plowshares rather than combat, denying us death triggers, so we trim it along with a Golgari Thug for the more proactive plan.
Sultai Aluren wants to resolve Aluren and then chain free creature spells like Acererak the Archlich for value while Force of Will protects the plan, so Kiora's Dismissal is strong tech since it can bounce Aluren itself and unravel their entire turn. Into the Flood Maw is efficient at bouncing Atraxa, Grand Unifier or Aluren (if a gift is promised) to reset their board development. Bridge from Below is unreliable as its token triggers require our nontoken creatures to die, so we trim it for more interaction. Keep pressuring quickly since once Aluren is online they generate significant card advantage that's hard to race from behind.