Some of spells behave in a special way with Roshan:
- Anti-Mage: Mana Void - can be casted on Roshan but deals no damage
- Batrider: Flamebreak - deals damage but Roshan stands still
- Batrider: Flaming Lasso - can be used on Roshan but won't stun him so you won't be able to drag Roshan
- Bloodseeker: Bloodrage - doesn't heal BS if he kills Roshan but it heals Roshan if Roshan kills any unit under Bloodrage
- Brewmaster: Primal Split: Storm: Cyclone - can be casted on Roshan but have no effect
- Chaos Knight: Reality Rift - upon cast teleports only the hero to Roshan's exact position, not both to random point
- Invoker: Ice Wall - deals damage but doesn't slow
- Keeper of the Light: Mana Leak - upon cast instanty stuns Roshan
- Magnus: Reverse Polarity - stuns and deals damage but don't move Roshan
- Oracle: Fortune's End - can be casted on Roshan but don't deal damage and don't affect Roshan's movespeed
- Puck: Waning Rift - deals damage but doesn't silence
- Rubick: Telekinesis - upon cast stuns Roshan for lift duration but Roshan can't be moved
- Tiny: Toss - Tiny can toss units to Roshan but can't toss Roshan itself
Items:
- Eul's Scepter of Divinity - upon cast instantly deals 50 damage to Roshan but doesn't cyclone him
- Force Staff - doesn't affect Roshan at all
- Necronomicon Warrior: Mana Burn - doesn't work
- Necronomicon Archer: Mana Burn - can be used on Roshan but deals no damage
- Radiance: Burn Damage - does not affect Roshan
All other items work fine on Roshan.
Spells that you can't target Roshan with:
- Axe: Battle Hunger
- Bane: Enfeeble
- Chen: Test of Faith
- Doom Bringer: Doom
- Enchantress: Enchant
- Earth Spirit: Boulder Smash
- Juggernaut: Omnislash
- Lion: Mana Drain
- Morphling: Adaptive Strike
- Necrophos: Reapers Scythe
- Silencer: Last Word
- Spell that won't affect Roshan at all:
- Ancient Apparition: Ice Vortex
- Anti-Mage: Mana Break
- Axe: Berserker's Call
- Batrider: Sticky Napalm
- Bloodseeker: Blood Rite
- Brewmaster: Primal Split: Earth: Permanent Immolation
- Clockwerk: Battery Assault
- Clockwerk: Power Cogs
- Dark Seer: Vacuum
- Disruptor: Kinetic Field
- Disruptor: Static Storm
- Drow Ranger: Gust
- Elder Titan: Astral Spirit
- Elder Titan: Earth Splitter
- Elder Titan: Echo Stomp
- Elder Titan: Natural Order
- Enigma: Midnight Pulse
- Gyrocopter: Call Down
- Invoker: Chaos Meteor
- Invoker: Deafening Blast
- Invoker: EMP
- Invoker: Sun Strike
- Invoker: Tornado
- Keeper of the Light: Blinding Light
- Kunkka: Ghost Ship
- Kunkka: Torrent
- Legion Commander: Overwhelming Odds
- Lifestealer: Feast
- Lion: Earth Spike
- Lone Druid Spirit Bear: Entangle
- Luna: Eclipse
- Medusa: Stone Gaze
- Meepo: Earthbind
- Meepo: Poof
- Naga Siren: Rip Tide
- Naga Siren: Song of the Siren
- Necrophos: Heartstopper Aura
- Nyx Assassin: Impale
- Phoenix: Fire Spirits
- Phoenix: Sun Ray
- Pudge: Meat Hook
- Razor: Eye of the Storm
- Riki: Smoke Screen
- Shadow Demon: Shadow Poison
- Shadow Demon: Soul Catcher
- Slark: Dark Pact
- Sniper: Shrapnel
- Spectre: Dispersion
- Spirit Breaker: Greater Bash (from ulty aswell)
- Techies: Suicide Squad! Attack!
- Tidehunter: Anchor Smash
- Tidehunter: Ravage
- Tinker: March of the Machines
- Tiny: Toss
- Troll Warlord: Whirling Axes (Melee)
- Troll Warlord: Whirling Axes (Ranged)
- Vengeful Spirit: Nether Swap
- Weaver: The Swarm
- Zeus: Static Field