diff --git a/code/datums/elements/rust.dm b/code/datums/elements/rust.dm
index 396307197c4..265e23c5a31 100644
--- a/code/datums/elements/rust.dm
+++ b/code/datums/elements/rust.dm
@@ -109,6 +109,8 @@
 	var/mob/living/victim = entered
 	if(IS_HERETIC(victim))
 		return
+	if(victim.can_block_magic(MAGIC_RESISTANCE))
+		return
 	victim.apply_status_effect(/datum/status_effect/rust_corruption)
 
 /datum/element/rust/heretic/proc/on_exited(turf/source, atom/movable/gone)
diff --git a/code/modules/antagonists/heretic/knowledge/side_rust_cosmos.dm b/code/modules/antagonists/heretic/knowledge/side_rust_cosmos.dm
index 671e01603c5..56999243b5d 100644
--- a/code/modules/antagonists/heretic/knowledge/side_rust_cosmos.dm
+++ b/code/modules/antagonists/heretic/knowledge/side_rust_cosmos.dm
@@ -76,7 +76,7 @@
 
 /datum/heretic_knowledge/summon/rusty
 	name = "Rusted Ritual"
-	desc = "Allows you to transmute a pool of vomit, some cable coil, and 5 sheets of iron into a Rust Walker. \
+	desc = "Allows you to transmute a pool of vomit, some cable coil, and 5 sheets of titanium into a Rust Walker. \
 		Rust Walkers excel at spreading rust and are moderately strong in combat."
 	gain_text = "I combined my knowledge of creation with my desire for corruption. The Marshal knew my name, and the Rusted Hills echoed out."
 	next_knowledge = list(
@@ -85,7 +85,7 @@
 	)
 	required_atoms = list(
 		/obj/effect/decal/cleanable/vomit = 1,
-		/obj/item/stack/sheet/iron = 5,
+		/obj/item/stack/sheet/mineral/titanium = 5,
 		/obj/item/stack/cable_coil = 15,
 	)
 	mob_to_summon = /mob/living/basic/heretic_summon/rust_walker