Grixis Control has minimal artifact/enchantment presence (only Campfire, Seething Landscape is a land), so Deglamer is a low-impact inclusion at best and mostly stays in the sideboard; bringing in a couple copies to deal with Campfire's incremental life gain is a marginal upgrade at most. Rancor is a liability against a deck full of cheap removal (Snuff Out, Cast Down, Cut Down) that two-for-ones us when it kills the enchanted creature, so trimming a couple copies for consistency is reasonable. Our main plan should be to develop multiple threats per turn to beat their Counterspell and removal-light-on-numbers control shell, since they only have a handful of hard counters and removal spells relative to our threat density. Keep the ramp package intact to accelerate past their removal into bigger threats faster than they can keep up.