diff --git a/modules/tooltip/unit.lua b/modules/tooltip/unit.lua
new file mode 100644
index 0000000..fbf19c2
--- /dev/null
+++ b/modules/tooltip/unit.lua
@@ -0,0 +1,166 @@
+local _, addon = ...
+
+-- colors
+local COLOR_TAPPED = CreateColor(3/5, 3/5, 3/5)
+local COLOR_GUILD = addon:CreateColor(0, 255, 25)
+local COLOR_GUILD_SAME = addon:CreateColor(0, 140, 255)
+local COLOR_LEVEL = addon:CreateColor(255, 208, 0)
+local COLOR_LEVEL_PET = addon:CreateColor(255, 255, 0)
+local COLOR_HOSTILE = addon:CreateColor(255, 51, 0)
+local COLOR_OWNER = addon:CreateColor(127, 127, 127)
+local COLOR_TITLE = addon:CreateColor(143, 143, 143)
+local COLOR_DIFFICULTY = { -- copied from QuestDifficultyColors to work with enums
+	[Enum.RelativeContentDifficulty.Trivial] = addon:CreateColor(0.5, 0.5, 0.5),
+	[Enum.RelativeContentDifficulty.Easy] = addon:CreateColor(0.25, 0.75, 0.25),
+	[Enum.RelativeContentDifficulty.Fair] = addon:CreateColor(1, 0.82, 0),
+	[Enum.RelativeContentDifficulty.Difficult] = addon:CreateColor(1, 0.5, 0.25),
+	[Enum.RelativeContentDifficulty.Impossible] = addon:CreateColor(1, 0.1, 0.1),
+}
+
+-- matching strings
+local FACTION_ALLIANCE = _G.FACTION_ALLIANCE -- globalstring
+local FACTION_HORDE = _G.FACTION_HORDE -- globalstring
+local PVP = _G.PVP -- globalstring
+local UNKNOWN = _G.UNKNOWN -- globalstring
+local CORPSE = _G.CORPSE -- globalstring
+local TOOLTIP_LEVEL = '^' .. _G.TOOLTIP_UNIT_LEVEL:gsub('%%s', '')
+local TOOLTIP_LEVEL_PET = '^' .. _G.TOOLTIP_WILDBATTLEPET_LEVEL_CLASS:gsub(' %%s', '')
+
+-- formatting strings
+local FORMAT_LEVEL = '%s%s %s'
+local FORMAT_LEVEL_PLAYER = '%s %s'
+local FORMAT_GUILD = '<%s>'
+local FORMAT_CLASSIFICATION = {
+	worldboss = ' |cfff01919Boss|r',
+	rareelite = '|cffffff00+|r |cff0090ffRare|r',
+	rare = ' |cff0090ffRare|r',
+	elite = '|cffffff00+|r',
+}
+
+-- use PreCall exclusively as PostCall sometimes has a _lot_ of annoying delay,
+-- and in PreCall we can straight up disable lines by returning positively
+TooltipDataProcessor.AddLinePreCall(Enum.TooltipDataLineType.UnitName, function(tooltip, data)
+	if tooltip:IsForbidden() then
+		return
+	end
+
+	if not tooltip:IsTooltipType(Enum.TooltipDataType.Unit) then
+		return
+	end
+
+	local unit = data.unitToken
+	if not unit then
+		return
+	end
+
+	if UnitIsPlayer(unit) then
+		local name = GetUnitName(unit, true)
+
+		local transliteratedName = addon:Transliterate(name)
+		if transliteratedName ~= name then
+			name = '*' .. transliteratedName
+		end
+
+		local _, class = UnitClass(unit)
+		if class then
+			name = addon.colors.class[class]:WrapTextInColorCode(name)
+		end
+
+		data.leftText = name
+	else
+		if not UnitPlayerControlled(unit) and UnitIsTapDenied(unit) then
+			data.leftText = COLOR_TAPPED:WrapTextInColorCode(UnitName(unit) or UNKNOWN)
+		else
+			local reactionColor = addon.colors.reaction[UnitReaction(unit, 'player')]
+			if reactionColor then
+				data.leftText = reactionColor:WrapTextInColorCode(UnitName(unit) or UNKNOWN)
+			end
+		end
+	end
+end)
+
+TooltipDataProcessor.AddLinePreCall(Enum.TooltipDataLineType.UnitOwner, function(tooltip, data)
+	if tooltip:IsForbidden() then
+		return
+	end
+
+	if not tooltip:IsTooltipType(Enum.TooltipDataType.Unit) then
+		return
+	end
+
+	data.leftText = COLOR_OWNER:WrapTextInColorCode(data.leftText)
+end)
+
+TooltipDataProcessor.AddLinePreCall(Enum.TooltipDataLineType.UnitThreat, function(tooltip)
+	if not tooltip:IsForbidden() then
+		return true
+	end
+end)
+
+TooltipDataProcessor.AddLinePreCall(Enum.TooltipDataLineType.None, function(tooltip, data)
+	-- Enum.TooltipDataLineType still doesn't contain a lot of types used in tooltips, or the types
+	-- are for some reason restricted, so we'll have to resort to matching and guesswork
+	if tooltip:IsForbidden() then
+		return
+	end
+
+	if not tooltip:IsTooltipType(Enum.TooltipDataType.Unit) then
+		return
+	end
+
+	if data.leftText == FACTION_HORDE or data.leftText == FACTION_ALLIANCE or data.leftText == PVP then
+		return true
+	end
+
+	local _, unit = tooltip:GetUnit()
+	if not unit then
+		return
+	end
+
+	if UnitIsPlayer(unit) then
+		local class = UnitClass(unit)
+		if data.leftText:sub(data.leftText:len() - class:len() + 1) == class then
+			return true
+		end
+
+
+		local guild = GetGuildInfo(unit)
+		if guild and data.leftText:match(guild) then
+			-- TODO: strip away realm
+			if UnitIsInMyGuild(unit) then
+				data.leftText = COLOR_GUILD_SAME:WrapTextInColorCode(FORMAT_GUILD:format(guild))
+			else
+				data.leftText = COLOR_GUILD:WrapTextInColorCode(FORMAT_GUILD:format(guild))
+			end
+		elseif data.leftText:match(TOOLTIP_LEVEL) then
+			local level = UnitEffectiveLevel(unit)
+			if UnitIsFriend(unit, 'player') then
+				local levelText = COLOR_LEVEL:WrapTextInColorCode(level)
+				data.leftText = FORMAT_LEVEL_PLAYER:format(levelText, UnitRace(unit))
+			else
+				local difficulty = C_PlayerInfo.GetContentDifficultyCreatureForPlayer(unit)
+				local levelText = COLOR_DIFFICULTY[difficulty]:WrapTextInColorCode(level > 0 and level or '??')
+				local raceText = COLOR_HOSTILE:WrapTextInColorCode(UnitRace(unit))
+				data.leftText = FORMAT_LEVEL_PLAYER:format(levelText, raceText)
+			end
+		end
+	else
+		if data.leftText == UnitCreatureFamily(unit) or data.leftText == UnitCreatureType(unit) then
+			return true
+		elseif data.leftText:match(TOOLTIP_LEVEL) then
+			local difficulty = C_PlayerInfo.GetContentDifficultyCreatureForPlayer(unit)
+			local level = UnitEffectiveLevel(unit)
+
+			local levelText = COLOR_DIFFICULTY[difficulty]:WrapTextInColorCode(level > 0 and level or '??')
+			local rarityText = FORMAT_CLASSIFICATION[UnitClassification(unit)] or ''
+			local creatureText = UnitCreatureFamily(unit) or UnitCreatureType(unit) or ''
+			data.leftText = FORMAT_LEVEL:format(levelText, rarityText, creatureText)
+		elseif data.leftText:match(TOOLTIP_LEVEL_PET) then
+			local levelText = COLOR_LEVEL_PET:WrapTextInColorCode(UnitBattlePetLevel(unit))
+			local familyText = _G['BATTLE_PET_NAME_' .. UnitBattlePetType(unit)]
+			data.leftText = FORMAT_LEVEL_PLAYER:format(levelText, familyText)
+		elseif data.leftText == CORPSE then
+			data.leftText = COLOR_OWNER:WrapTextInColorCode(data.leftText)
+		end
+	end
+end)