diff --git a/code/_onclick/hud/screen/screen_intent.dm b/code/_onclick/hud/screen/screen_intent.dm
index ca75b836812..067a234fbd4 100644
--- a/code/_onclick/hud/screen/screen_intent.dm
+++ b/code/_onclick/hud/screen/screen_intent.dm
@@ -48,6 +48,19 @@
 		icon = intent.icon
 		icon_state = selected ? intent.icon_state : "[intent.icon_state]_off"
 
+/obj/screen/intent_button/MouseEntered(location, control, params)
+	if(intent && (intent.name || intent.desc))
+		openToolTip(user = usr, tip_src = src, params = params, content = intent.desc)
+	return ..()
+
+/obj/screen/intent_button/MouseDown()
+	closeToolTip(usr)
+	return ..()
+
+/obj/screen/intent_button/MouseExited()
+	closeToolTip(usr)
+	return ..()
+
 /obj/screen/intent
 	name                 = "intent"
 	icon                 = 'icons/screen/intents.dmi'
@@ -98,20 +111,21 @@
 
 	var/decl/intent/owner_intent = owner.get_intent()
 	var/i = 1
-	var/list/all_intents = owner.get_available_intents()
+	var/list/unused_selectors = intent_selectors?.Copy()
+	var/list/all_intents = owner.get_available_intents(skip_update = TRUE)
 	for(var/decl/intent/intent as anything in all_intents)
 		var/obj/screen/intent_button/intent_button = get_intent_button(i)
 		if(intent == owner_intent)
 			intent_button.set_selected(intent)
 		else
 			intent_button.set_deselected(intent)
+		LAZYREMOVE(unused_selectors, intent_button)
 		i++
 		apply_intent_button_offset(intent_button, i, length(all_intents))
 		add_vis_contents(intent_button)
 
-	if(i < length(intent_selectors))
-		for(var/index = i+1 to length(intent_selectors))
-			remove_vis_contents(intent_selectors[index])
+	if(length(unused_selectors))
+		remove_vis_contents(unused_selectors)
 
 /obj/screen/intent/binary
 	intent_width     = 32
diff --git a/code/game/objects/items/__item.dm b/code/game/objects/items/__item.dm
index d4ba0cec66f..6b7a52844eb 100644
--- a/code/game/objects/items/__item.dm
+++ b/code/game/objects/items/__item.dm
@@ -1164,8 +1164,13 @@ modules/mob/living/human/life.dm if you die, you will be zoomed out.
 /obj/item/proc/loadout_should_keep(obj/item/new_item, mob/wearer)
 	return type != new_item.type && !replaced_in_loadout
 
+/obj/item/dropped(mob/user, slot)
+	. = ..()
+	user?.clear_available_intents()
+
 /obj/item/equipped(mob/user, slot)
 	. = ..()
+	user?.clear_available_intents()
 	// delay for 1ds to allow the rest of the call stack to resolve
 	if(!QDELETED(src) && !QDELETED(user) && user.get_equipped_slot_for_item(src) == slot)
 		try_burn_wearer(user, slot, 1)
@@ -1296,3 +1301,6 @@ modules/mob/living/human/life.dm if you die, you will be zoomed out.
 		squash_item()
 		if(!QDELETED(src))
 			physically_destroyed()
+
+/obj/item/proc/get_provided_intents(mob/wielder)
+	return null
diff --git a/code/modules/mob/inventory.dm b/code/modules/mob/inventory.dm
index f4482ab7e98..a963be6b2e4 100644
--- a/code/modules/mob/inventory.dm
+++ b/code/modules/mob/inventory.dm
@@ -466,7 +466,8 @@
 	return
 
 /mob/proc/select_held_item_slot(var/slot)
-	return
+	SHOULD_CALL_PARENT(TRUE)
+	clear_available_intents()
 
 /mob/proc/get_inventory_slots()
 	return
diff --git a/code/modules/mob/living/inventory.dm b/code/modules/mob/living/inventory.dm
index f0ab7bdc92e..827d16090d0 100644
--- a/code/modules/mob/living/inventory.dm
+++ b/code/modules/mob/living/inventory.dm
@@ -58,6 +58,7 @@
 		queue_hand_rebuild()
 
 /mob/living/select_held_item_slot(var/slot)
+	. = ..()
 	var/last_slot = get_active_held_item_slot()
 	if(slot != last_slot && (slot in get_held_item_slots()))
 		_held_item_slot_selected = slot
diff --git a/code/modules/mob/mob_intent.dm b/code/modules/mob/mob_intent.dm
index b55b2342ed8..1e28bd7df8d 100644
--- a/code/modules/mob/mob_intent.dm
+++ b/code/modules/mob/mob_intent.dm
@@ -35,6 +35,10 @@
 	var/icon = 'icons/screen/intents.dmi'
 	/// State used to update intent selector.
 	var/icon_state
+	/// Whether or not this intent is available if you have an item in your hand.
+	var/requires_empty_hand
+	/// Intents to be removed from the available list if this intent is present.
+	var/list/blocks_other_intents
 
 /decl/intent/validate()
 	. = ..()
@@ -83,20 +87,10 @@
 	icon_state       = "intent_disarm"
 	sort_order       = 2 // Corresponding to hotkey order.
 
-// Used by nymphs.
-/decl/intent/harm/binary
-	icon             = 'icons/screen/intents_wide.dmi'
-	uid              = "intent_harm_simple"
-	intent_flags     = (I_FLAG_HARM|I_FLAG_DISARM)
-
-/decl/intent/help/binary
-	icon             = 'icons/screen/intents_wide.dmi'
-	uid              = "intent_help_simple"
-	intent_flags     = (I_FLAG_HARM|I_FLAG_GRAB)
-
 /mob
 	/// Decl for current 'intent' of mob; hurt, harm, etc. Initialized by get_intent().
-	var/decl/intent/_a_intent
+	VAR_PRIVATE/decl/intent/_a_intent
+	VAR_PRIVATE/list/_available_intents
 
 /mob/proc/check_intent(checking_intent)
 	var/decl/intent/intent = get_intent() // Ensures intent has been initalised.
@@ -112,7 +106,7 @@
 	if(!isnum(new_intent))
 		new_intent = resolve_intent(new_intent)
 	else // Retrieve intent decl based on flag.
-		for(var/decl/intent/intent as anything in get_available_intents())
+		for(var/decl/intent/intent as anything in get_available_intents(skip_update = TRUE))
 			if(intent.intent_flags & new_intent)
 				new_intent = intent
 				break
@@ -127,6 +121,15 @@
 
 /mob/proc/get_intent()
 	RETURN_TYPE(/decl/intent)
+	var/list/available_intents = get_available_intents()
+	if(length(available_intents) && (!_a_intent || !(_a_intent in available_intents)))
+		var/new_intent
+		if(_a_intent)
+			for(var/decl/intent/intent in available_intents)
+				if(_a_intent.intent_flags & intent.intent_flags)
+					new_intent = intent
+					break
+		_a_intent = new_intent || available_intents[1]
 	if(!_a_intent)
 		_a_intent = get_default_intent()
 	return _a_intent
@@ -134,25 +137,59 @@
 /mob/proc/get_default_intent()
 	return GET_DECL(/decl/intent/help)
 
-/mob/proc/get_available_intents()
-	var/static/list/available_intents
-	if(!available_intents)
-		available_intents = list(
+/mob/proc/get_default_intents()
+	var/static/list/default_intents
+	if(!default_intents)
+		default_intents = list(
 			GET_DECL(/decl/intent/help),
 			GET_DECL(/decl/intent/disarm),
 			GET_DECL(/decl/intent/grab),
 			GET_DECL(/decl/intent/harm)
 		)
-		available_intents = sortTim(available_intents, /proc/cmp_decl_sort_value_asc)
-	return available_intents
+	return default_intents
+
+/mob/proc/clear_available_intents(skip_update, skip_sleep)
+	set waitfor = FALSE
+	if(!skip_sleep)
+		sleep(0)
+		if(QDELETED(src))
+			return
+	_available_intents = null
+	if(!skip_update && istype(hud_used) && hud_used.action_intent)
+		hud_used.action_intent.update_icon()
+
+/mob/proc/get_available_intents(skip_update, force)
+	var/obj/item/held = get_active_held_item()
+	if(!held)
+		_available_intents = get_default_intents()
+	else if(force || !_available_intents)
+		// Grab all relevant intents.
+		_available_intents = list()
+		for(var/decl/intent/intent as anything in get_default_intents())
+			if(intent.requires_empty_hand)
+				continue
+			_available_intents += intent
+		// Add inhand intents.
+		var/list/held_intents = held.get_provided_intents(src)
+		if(length(held_intents))
+			_available_intents |= held_intents
+		// Trim blocked intents.
+		for(var/decl/intent/intent as anything in _available_intents)
+			_available_intents -= intent.blocks_other_intents
+		// Sort by hotkey order.
+		_available_intents = sortTim(_available_intents, /proc/cmp_decl_sort_value_asc)
+		// Update our HUD immediately.
+		if(!skip_update && istype(hud_used) && hud_used.action_intent)
+			hud_used.action_intent.update_icon()
+	return _available_intents
 
 /mob/proc/cycle_intent(input)
 	set name = "a-intent"
 	set hidden = TRUE
 	switch(input)
 		if(INTENT_HOTKEY_RIGHT)
-			return set_intent(next_in_list(get_intent(), get_available_intents()))
+			return set_intent(next_in_list(get_intent(), get_available_intents(skip_update = TRUE)))
 		if(INTENT_HOTKEY_LEFT)
-			return set_intent(previous_in_list(get_intent(), get_available_intents()))
+			return set_intent(previous_in_list(get_intent(), get_available_intents(skip_update = TRUE)))
 		else // Fallback, should just use set_intent() directly
 			return set_intent(input)
diff --git a/mods/mobs/dionaea/mob/_nymph.dm b/mods/mobs/dionaea/mob/_nymph.dm
index a1c8efe4486..9e6f68f30ba 100644
--- a/mods/mobs/dionaea/mob/_nymph.dm
+++ b/mods/mobs/dionaea/mob/_nymph.dm
@@ -76,18 +76,6 @@
 		heal_damage(OXY, rads, do_update_health = FALSE)
 		heal_damage(TOX, rads)
 
-/*
-/mob/living/simple_animal/alien/diona/get_default_intent()
-	return GET_DECL(/decl/intent/help/binary/diona)
-
-/mob/living/simple_animal/alien/diona/get_available_intents()
-	var/static/list/available_intents = list(
-		GET_DECL(/decl/intent/harm/binary/diona),
-		GET_DECL(/decl/intent/help/binary/diona)
-	)
-	return available_intents
-*/
-
 /decl/bodytype/diona
 	name = "nymph"
 	bodytype_flag = 0
diff --git a/mods/mobs/dionaea/mob/nymph_ui.dm b/mods/mobs/dionaea/mob/nymph_ui.dm
index fc44f7639a3..dca19d4b764 100644
--- a/mods/mobs/dionaea/mob/nymph_ui.dm
+++ b/mods/mobs/dionaea/mob/nymph_ui.dm
@@ -1,17 +1,3 @@
-/* Commented out due to issues with interactions and combined intent flags.
-/obj/screen/intent/binary/diona
-	icon = 'mods/mobs/dionaea/icons/ui_intents.dmi'
-	screen_loc = DIONA_SCREEN_LOC_INTENT
-
-/decl/intent/harm/binary/diona
-	icon = 'mods/mobs/dionaea/icons/ui_intent_overlay.dmi'
-	uid = "intent_harm_binary_diona"
-
-/decl/intent/help/binary/diona
-	icon = 'mods/mobs/dionaea/icons/ui_intent_overlay.dmi'
-	uid = "intent_help_binary_diona"
-*/
-
 /decl/ui_style/diona
 	name = "Diona"
 	restricted = TRUE
diff --git a/mods/species/ascent/mobs/nymph/_nymph.dm b/mods/species/ascent/mobs/nymph/_nymph.dm
index 16447b0c51d..da48aabf82e 100644
--- a/mods/species/ascent/mobs/nymph/_nymph.dm
+++ b/mods/species/ascent/mobs/nymph/_nymph.dm
@@ -51,15 +51,3 @@
 
 /mob/living/simple_animal/alien/kharmaan/get_dexterity(var/silent)
 	return (DEXTERITY_EQUIP_ITEM)
-
-/*
-/mob/living/simple_animal/alien/kharmaan/get_default_intent()
-	return GET_DECL(/decl/intent/help/binary/ascent)
-
-/mob/living/simple_animal/alien/kharmaan/get_available_intents()
-	var/static/list/available_intents = list(
-		GET_DECL(/decl/intent/harm/binary/ascent),
-		GET_DECL(/decl/intent/help/binary/ascent)
-	)
-	return available_intents
-*/
\ No newline at end of file
diff --git a/mods/species/ascent/mobs/nymph/nymph_ui.dm b/mods/species/ascent/mobs/nymph/nymph_ui.dm
index e3b6d1ec70c..85fc14b3aff 100644
--- a/mods/species/ascent/mobs/nymph/nymph_ui.dm
+++ b/mods/species/ascent/mobs/nymph/nymph_ui.dm
@@ -1,16 +1,3 @@
-/* Commented out due to issues with interactions and combined intent flags.
-/obj/screen/intent/binary/ascent
-	icon = 'mods/species/ascent/icons/ui_intents.dmi'
-	screen_loc = ANYMPH_SCREEN_LOC_INTENT
-
-/decl/intent/harm/binary/ascent
-	icon = 'mods/species/ascent/icons/ui_intent_overlay.dmi'
-	uid = "intent_harm_binary_ascent"
-
-/decl/intent/help/binary/ascent
-	icon = 'mods/species/ascent/icons/ui_intent_overlay.dmi'
-	uid = "intent_help_binary_ascent"
-*/
 /obj/screen/ascent_nymph_molt
 	name = "molt"
 	icon = 'mods/species/ascent/icons/ui_molt.dmi'