Izzet Aggro is another fast prowess shell, so the slow value engine of Unholy Annex/Ritual Chamber is too passive against their clock. Graveyard Trespasser blocks well against their small bodies, and when its trigger exiles a creature card from a graveyard it drains them for 1 and gains you 1, which can help in a race. Tishana's Tidebinder can counter a triggered ability like Stormchaser's Talent's level 2 trigger or Emberheart Challenger's valiant trigger (which also strips the Challenger of its abilities while Tidebinder stays on the battlefield), while also providing a relevant flash blocker. It can't counter spells like Boomerang Basics, so don't hold it for those. Keep Fatal Push and Go for the Throat as premium efficient removal for their cheap creatures.