Mechon M84 are three story exclusive Mechon in Xenoblade Chronicles. They can be found in the Ether Mine during two story event battles, appearing from arms along the mine's central engine on the B3F. These Mechon M84 are one of the few story exclusive enemies that exceptionally drop Treasure Chests.
One is fought at level 24 on the northern platform, reached by using the propeller system on the initial eastern platform when arriving from the Personnel Lift 3. The engine's arm blocks the access to the ice Ether Crystals deposit.
Two are fought at level 23 and 24 on the western platform, reached by using the propeller system on the northern platform. The engine's arm blocks the access to the B4F. It can be noted that the level 23 Mechon M84 is slightly smaller than the level 24 one.
|Upper Chainsaw II||Talent (Physical)||2.05 – 2.25||1||-||-||Yes (3)||-|
|Cylinder Hand I||Talent (Ether)||1.8 – 2.0||1||Frontal Arc||-||Yes (1)||-|
|Auto Chainsaw||Physical||3.3 – 3.5||1||-||-||Yes (1)||-|
|Deadly Chainsaw||Physical||3.3 – 3.5||1||Frontal Arc||Bleed||-||-|
|Lower Chainsaw||Physical||2.8 – 3.0||1||Frontal Arc||Topple||-||-|
|Long Cannon||Ether||1.8 – 2.0||1||-||-||Yes (1)||-|
† It has not yet been confirmed whether this enemy uses Long Cannon.
|Break||70%||Lock-On||0%||Physical Def. ▼||70%||Agility ▼||0%|
|Topple||0%||Bind||0%||Ether Def. ▼||0%||Aura Seal||0%|
|Daze||0%||Paralysis||0%||Strength ▼||0%||Arts Seal||70%|
Wood chests will contain 1 or 2 items from the "Wood" table.
Silver chests will contain 2 items from the "Silver" table and 1 from the "Wood" table.
Gold chests will contain 2 items from the "Gold" table, and 1 from each of the "Silver" and "Wood" tables.
|Initial Tension II||Fire||31.3%|
|Daze Up II||Electric||31.3%|
|Search Sniper||1 slot||3.7%|
|Lieutenant Pike||1 slot||3.6%|
|Lieutenant Pike||2 slots||3.1%|
|Search Sniper||2 slots||2.1%|
|Grand Armour||1 slot||8.6%|
|Iron Boots||0 slots||7.2%|
|Iron Armour||0 slots||4.8%|
|Guardis Greaves||0 slots||4.3%|