Grixis Affinity lives and dies by its artifact density, using Ichor Wellspring, artifact lands, and Reckoner's Bargain to enable zero-cost Myr Enforcer and Refurbished Familiar while powering Galvanic Blast's metalcraft for 4 damage, so stripping their artifacts is our best angle of attack. Dust to Dust at full count exiles two artifacts per cast, which can both deny metalcraft and remove a free-cast Myr Enforcer's discount engine pieces like Ichor Wellspring, while Revoke Existence picks off a key Blood Fountain or Nihil Spellbomb. We cut Halo Hopper and Icatian Javelineers since they're too slow and low-impact against a deck that floods the board quickly, and the extra Thraben Charms come out since their damage mode is often outclassed by our dedicated artifact hate in this matchup.