Gruul Broodscale relies heavily on colorless artifact/land engines like Urza's Saga and Eldrazi Temple, plus Vexing Bauble against our free spells. Force of Vigor can destroy two of these problem permanents at once, often for free by exiling a green card, taking out Urza's Saga or their Vexing Bauble before it locks out our evoke creatures. Curator of Mysteries is too slow and does nothing to their board plan, so it comes out. Endurance remains excellent since it can flash in as a blocker against their creatures and strip their graveyard of any value pieces they've accrued.

Izzet Prowess is a fast, low-curve deck that can't interact with our graveyard, so we mostly just need to survive and land Living End. Mystical Dispute is cheap and can stop their own countermagic (Spell Pierce, Mystical Dispute) for just {U} since those are blue spells, or it can counter a key Cori-Steel Cutter/Slickshot Show-Off for the full {2}{U} since those aren't blue. Curator of Mysteries is our weakest, most passive card here since we need speed and interaction, not a 4-mana flier. Keep Endurance and Subtlety in to fight through their removal-light, tempo-based gameplan.

Esper Blink leans on ETB value creatures (Flickerwisp, Overlord of the Balemurk) alongside Ephemerate, Phelia, and planeswalker/creature activated abilities like Kaito. Clarion Conqueror shuts down all activated abilities of artifacts, creatures, and planeswalkers, stopping Kaito's loyalty abilities, while being a solid 3/3 flying clock. Curator of Mysteries is a fair trade-out since it doesn't interact with their game plan and dies to their removal suite (Fatal Push with revolt, Solitude). Keep Force of Negation to protect our Living End and Subtlety to answer their many evasive threats.