Turf War

Turf Wars are a mechanic introduced into Monster Hunter World. When two monsters meet, they might engage in a cinematic battle where either one or both monsters take significant damage and drop an item.

Bond Attacks are a mechanic introduced into Monster Hunter World with the introduction of Lunastra as a DLC. They are a special attack that has two monsters fuse their attacks together to create a massive, highly damaging attack. So far the only monsters that can do this are Teostra and Lunastra.

Ancient Forest

 * Anjanath vs. Great Jagras (winner is Anjanath)
 * Anjanath vs. Rathalos (winner is Rathalos)
 * Anjanath vs. Azure Rathalos (winner is Azure Rathalos)
 * Anjanath vs. Tobi-Kadachi (winner is Anjanath)
 * Fulgur Anjanath vs. Great Jagras (winner is Fulgur Anjanath)
 * Fulgur Anjanath vs. Nargacuga (tie, both take damage)
 * Fulgur Anjanath vs. Tobi-Kadachi (winner is Fulgur Anjanath)
 * Bazelgeuse vs. Deviljho (tie, both take damage)
 * Deviljho vs. Rathalos (winner is Deviljho)
 * Savage Deviljho vs. Rathalos (winner is Savage Deviljho)
 * Glavenus vs. Ebony Odogaron (tie, both take damage)
 * Glavenus vs. Rathalos (random outcome for who wins)
 * Glavenus vs. Zinogre (tie, both take damage)
 * Nargacuga vs. Rathalos (tie, both take damage)
 * Nargacuga vs. Azure Rathalos (tie, both take damage)
 * Ebony Odogaron vs. Rathalos (tie, both take damage)
 * Rathalos vs. Tigrex (tie, both take damage)
 * Rathalos vs. Zinogre (tie, both take damage)
 * Azure Rathalos vs. Tigrex (tie, both take damage)
 * Azure Rathalos vs. Zinogre (tie, both take damage)

Wildspire Waste

 * Fulgur Anjanath vs. Diablos (tie, both take damage)
 * Fulgur Anjanath vs. Black Diablos (tie, both take damage)
 * Barroth vs. Diablos (winner is Diablos)
 * Barroth vs. Black Diablos (winner is Black Diablos)
 * Barroth vs. Jyuratodus (tie, both take damage)
 * Deviljho vs. Diablos (winner is Deviljho)
 * Savage Deviljho vs. Diablos (winner is Savage Deviljho)
 * Savage Deviljho vs. Black Diablos (winner is Savage Deviljho)
 * Savage Deviljho vs. Rajang (tie, both take damage)
 * Diablos vs. Black Diablos (random outcome for who wins)
 * Diablos vs. Glavenus (tie, both take damage)
 * Diablos vs. Rathian (winner is Diablos)
 * Diablos vs. Pink Rathian (winner is Diablos)
 * Black Diablos vs. Glavenus (tie, both take damage)
 * Black Diablos vs. Rathian (winner is Black Diablos)
 * Black Diablos vs. Pink Rathian (winner is Black Diablos)
 * Glavenus vs. Tigrex (tie, both take damage)
 * Ebony Odogaron vs. Nightshade Paolumu (winner is Ebony Odogaron)

Coral Highlands

 * Fulgur Anjanath vs. Zinogre (tie, both take damage)
 * Deviljho vs. Legiana (winner is Deviljho)
 * Savage Deviljho vs. Legiana (winner is Savage Deviljho)
 * Savage Deviljho vs. Namielle (tie, both take damage)
 * Legiana vs. Odogaron (tie, both take damage)
 * Legiana vs. Ebony Odogaron (tie, both take damage)
 * Legiana vs. Paolumu (winner is Legiana)
 * Nargacuga vs. Odogaron (tie, both take damage)
 * Nargacuga vs. Ebony Odogaron (tie, both take damage)
 * Odogaron vs. Paolumu (winner is Odogaron)
 * Odogaron vs. Tzitzi-Ya-Ku (winner is Odogaron)
 * Ebony Odogaron vs. Paolumu (winner is Ebony Odogaron)
 * Ebony Odogaron vs. Tzitzi-Ya-Ku (winner is Ebony Odogaron)

Rotten Vale

 * Savage Deviljho vs. Blackveil Vaal Hazak (tie, both take damage)
 * Acidic Glavenus vs. Odogaron (tie, both take damage)
 * Acidic Glavenus vs. Ebony Odogaron (tie, both take damage)
 * Acidic Glavenus vs. Tigrex (tie, both take damage)
 * Odogaron vs. Radobaan (winner is Odogaron)
 * Odogaron vs. Tigrex (tie, both take damage)
 * Odogaron vs. Vaal Hazak (winner is Vaal Hazak)
 * Odogaron vs. Blackveil Vaal Hazak (winner is Blackveil Vaal Hazak)
 * Ebony Odogaron vs. Blackveil Vaal Hazak (winner is Blackveil Vaal Hazak)

Elder's Recess

 * Seething Bazelgeuse vs. Savage Deviljho (tie, both take damage)
 * Brachydios vs. Ebony Odogaron (tie, both take damage)
 * Brachydios vs. Rathalos (tie, both take damage)
 * Brachydios vs. Azure Rathalos (tie, both take damage)
 * Brachydios vs. Tigrex (tie, both take damage)
 * Brachydios vs. Brute Tigrex (tie, both take damage)
 * Savage Deviljho vs. Azure Rathalos (winner is Savage Deviljho)
 * Glavenus vs. Ebony Odogaron (tie, both take damage)
 * Glavenus vs. Rathalos (random outcome for who wins)
 * Glavenus vs. Azure Rathalos (random outcome for who wins)
 * Kushala Daora vs. Lunastra (tie, both take damage)
 * Kushala Daora vs. Nergigante (tie, both take damage)
 * Kushala Daora vs. Rajang (tie, both take damage)
 * Kushala Daora vs. Teostra (tie, both take damage)
 * Lunastra vs. Nergigante (tie, both take damage)
 * Lunastra vs. Rajang (tie, both take damage)
 * Nergigante vs. Teostra (tie, both take damage)
 * Ebony Odogaron vs. Rathalos (tie, both take damage)
 * Ebony Odogaron vs. Azure Rathalos (tie, both take damage)
 * Ebony Odogaron vs. Uragaan (winner is Ebony Odogaron)
 * Rajang vs. Rathalos (winner is Rajang)
 * Rajang vs. Azure Rathalos (winner is Rajang)
 * Rajang vs. Teostra (tie, both take damage)
 * Azure Rathalos vs. Brute Tigrex (tie, both take damage)

Hoarfrost Reach

 * Fulgur Anjanath vs. Barioth (tie, both take damage)
 * Fulgur Anjanath vs. Tigrex (tie, both take damage)
 * Fulgur Anjanath vs. Viper Tobi-Kadachi (winner is Fulgur Anjanath)
 * Banbaro vs. Beotodus (tie, both take damage)
 * Barioth vs. Banbaro (winner is Barioth)
 * Barioth vs. Legiana (tie, both take damage)
 * Barioth vs. Shrieking Legiana (tie, both take damage)
 * Savage Deviljho vs. Shrieking Legiana (winner is Savage Deviljho)
 * Savage Deviljho vs. Velkhana (tie, both take damage)
 * Ebony Odogaron vs Barioth (tie, both take damage)
 * Ebony Odogaron vs Tigrex (tie, both take damage)
 * Ebony Odogaron vs Legiana (tie, both take damage)
 * Ebony Odogaron vs Shrieking Legiana (tie, both take damage)
 * Rajang vs. Legiana (winner is Rajang)
 * Rajang vs. Shrieking Legiana (winner is Rajang)

Guiding Lands

 * Fulgur Anjanath vs. Brute Tigrex (tie, both take damage)
 * Fulgur Anjanath vs. Stygian Zinogre (tie, both take damage)
 * Barioth vs. Odogaron (tie, both take damage)
 * Brachydios vs. Odogaron (tie, both take damage)
 * Brachydios vs. Zinogre (tie, both take damage)
 * Brachydios vs. Stygian Zinogre (tie, both take damage)
 * Savage Deviljho vs. Ruiner Nergigante (tie, both take damage)
 * Glavenus vs. Odogaron (tie, both take damage)
 * Glavenus vs. Brute Tigrex (tie, both take damage)
 * Glavenus vs. Stygian Zinogre (tie, both take damage)
 * Acidic Glavenus vs. Diablos (tie, both take damage)
 * Acidic Glavenus vs. Black Diablos (tie, both take damage)
 * Acidic Glavenus vs. Rathalos (random outcome for who wins)
 * Acidic Glavenus vs. Azure Rathalos (random outcome for who wins)
 * Acidic Glavenus vs. Brute Tigrex (tie, both take damage)
 * Acidic Glavenus vs. Zinogre (tie, both take damage)
 * Acidic Glavenus vs. Stygian Zinogre (tie, both take damage)
 * Kirin vs. Rajang (winner is Rajang)
 * Kushala Daora vs. Ruiner Nergigante (tie, both take damage)
 * Legiana vs. Nightshade Paolumu (winner is Legiana)
 * Lunastra vs. Ruiner Nergigante (ti, both take damage)
 * Lunastra vs. Velkhana (tie, both take damage)
 * Namielle vs. Rajang (tie, both take damage)
 * Ruiner Nergigante vs. Rajang (tie, both take damage)
 * Ruiner Nergigante vs. Teostra (tie, both take damage)
 * Ruiner Nergigante vs. Velkhana (tie, both take damage)
 * Odogaron vs. Nightshade Paolumu (winner is Odogaron)
 * Odogaron vs. Rathalos (tie, both take damage)
 * Odogaron vs. Azure Rathalos (tie, both take damage)
 * Odogaron vs. Brute Tigrex (tie, both take damage)
 * Ebony Odogaron vs. Radobaan (winner is Ebony Odogaron)
 * Ebony Odogaron vs. Brute Tigrex (tie, both take damage)
 * Rajang vs. Rathian (winner is Rajang)
 * Rajang vs. Pink Rathian (winner is Rajang)
 * Rajang vs. Paolumu (winner is Rajang)
 * Rajang vs. Nightshade Paolumu (winner is Rajang)
 * Rajang vs. Pukei-Pukei (winner is Rajang)
 * Rajang vs. Coral Pukei-Pukei (winner is Rajang)
 * Rajang vs. Blackveil Vaal Hazak (tie, both take damage)
 * Rajang vs. Velkhana (tie, both take damage)
 * Rajang vs. Yian Garuga (winner is Rajang)
 * Rajang vs. Scarred Yian Garuga (winner is Rajang)
 * Rathalos vs. Stygian Zinogre (tie, both take damage)
 * Azure Rathalos vs. Stygian Zinogre (tie, both take damage)
 * Teostra vs. Velkhana (tie, both take damage)
 * Yian Garuga vs. Zinogre (tie, both take damage)
 * Yian Garuga vs. Stygian Zinogre (tie, both take damage)
 * Scarred Yian Garuga vs. Zinogre (tie, both take damage)

List of Monster Bond Attacks

 * Teostra & Lunastra (when both are in the area and are enraged, they will merge their supernovas together creating a wide range attack that deals a lot of damage)