Cassette Beasts

There are exactly 5 Landkeeper Offices in the game. Here is an image from the wiki showing their exact locations:



If you're having trouble getting to the window on the top of the buildings, you might need to acquire some of the overworld abilities to access it.

The only difficult battle for me was the one on the far left of the map in the Marshes.I think a part of that was me being underleveled, woops.

Anyways, their beasts are level 40-45 IIRC, and the main issue are the 2 Earth Types being used: Kingrave & Queenyx. Their moves are frankly pretty annoying to deal with. Earth types are weak to Astral, Metal, Plant, and Water attacks. The other 2 beasts are Beast type, which is basically this games Normal type from Pokemon, so they're not too bad. What I did was Fuse together my Ramtasm along with my partner using my Scubalrus. Once fused, we absolutely decimated the two rangers.

I would suggest one of the beasts that you use be an Astral type, because when they are hit by an Earth type attack, you get an x3 AP Boost.

Once you've defeated the duo's in each of the 5 offices, the achievement will unlock.

Clearing out all of the offices is necessary for progressing through Eugene's and questline and ultimately unlocking this achievement:



I cleared out the offices with Meredith, as I was working on the relationship achievement with her. Once I switched to Eugene, the quest update to go to the HQ. So, you don't have to clear the offices with Eugene, just the HQ.

There are exactly 5 Landkeeper Offices in the game. Here is an image from the wiki showing their exact locations:



If you're having trouble getting to the window on the top of the buildings, you might need to acquire some of the overworld abilities to access it.

The only difficult battle for me was the one on the far left of the map in the Marshes.I think a part of that was me being underleveled, woops.

Anyways, their beasts are level 40-45 IIRC, and the main issue are the 2 Earth Types being used: Kingrave & Queenyx. Their moves are frankly pretty annoying to deal with. Earth types are weak to Astral, Metal, Plant, and Water attacks. The other 2 beasts are Beast type, which is basically this games Normal type from Pokemon, so they're not too bad. What I did was Fuse together my Ramtasm along with my partner using my Scubalrus. Once fused, we absolutely decimated the two rangers.

I would suggest one of the beasts that you use be an Astral type, because when they are hit by an Earth type attack, you get an x3 AP Boost.

Once you've defeated the duo's in each of the 5 offices, the achievement will unlock.

Clearing out all of the offices is necessary for progressing through Eugene's and questline and ultimately unlocking this achievement:



I cleared out the offices with Meredith, as I was working on the relationship achievement with her. Once I switched to Eugene, the quest update to go to the HQ. So, you don't have to clear the offices with Eugene, just the HQ.