Mono-Green Eldrazi leans hard on Eldrazi Temple and Ugin's Labyrinth for extra colorless mana to cheat out Emrakul, the Promised End and Ulamog, the Ceaseless Hunger, so Damping Sphere is a premier answer that strips that bonus mana and taxes their multi-spell Green Sun's Zenith/Malevolent Rumble turns. Consign to Memory counters Kozilek's Command outright since it's a colorless instant, and Spell Snare picks off two-mana spells like Fanatic of Rhonas or Malevolent Rumble. Haywire Mite can answer Chalice of the Void or Trinisphere if they bring in artifacts of their own. Trim fetches and surveil-lands since games go long and you want maximum disruption density rather than early tempo lands.

Damping Sphere is excellent here since it caps Eldrazi Temple and other big-mana lands to producing only {C} and taxes their multi-spell turns, badly slowing a deck that wants to chain Ancient Stirrings into Malevolent Rumble into a big Eldrazi. Consign to Memory and Spell Snare pick off Kozilek's Command (a colorless instant, hit by Consign to Memory) and two-mana pieces like Basking Broodscale, while Haywire Mite answers their own Vexing Bauble or Trinisphere if they bring it in. Teferi, Time Raveler slows their ability to deploy instant-speed disruption and lets your sorcery-speed removal line up cleanly. Cut fetches that thin a deck already flooded with lands plus a spare surveil-land for the higher-impact disruption package.

Izzet Prowess wants to dump its hand into a wide, cheap board (Dragon's Rage Channeler, Monastery Swiftspear, Slickshot Show-Off) and pump it with burn, so Wrath of the Skies is a clean sweeper that resets the board even against a hand full of one-mana threats. Spell Snare answers Cori-Steel Cutter and Slickshot Show-Off at two mana, while Consign to Memory's extra copies help counter colorless spells like Mishra's Bauble (the card itself as a spell, not its activated ability, is what gets countered) and opposing triggered abilities. Since their removal (Lightning Bolt, Lava Dart, Unholy Heat) is aimed at your creatures rather than your board wipes, this is a favorable spot to overload on sweeper effects. Cut slow single-target removal and a surveil-land for the extra reach.