When feeding weapons, always choose 9★ as much as possible since they give the highest points in S-ATK.
If you are not leveling DEX, use 8★ after two 9★ to avoid getting a level of DEX before level 50, then use 4★ Room Goods to bring it back down.
R-ATK
Assault Rifle Launcher T. Machinegun Bullet Bow Room Goods (5★)
When feeding weapons, always choose 9★ as much as possible since they give the highest points in R-ATK.
If you are not leveling DEX, use 8★ after two 9★ to avoid getting a level of DEX before level 50, then use 5★ Room Goods to bring it back down.
T-ATK
Rod Talis Wand Room Goods (6★)
When feeding weapons, always choose 9★ as much as possible since they give the highest points in T-ATK.
If you are not leveling DEX, use 8★ after two 9★ to avoid getting a level of DEX before level 50, then use 6★ Room Goods to bring it back down.
DEX
Photon Art Disc Technique Disc
Since discs only increases DEX and nothing else, this build is pretty straight forward.
S-DEF
Leg Unit Room Goods (2★) Room Goods (5★)
Since there's no specific room goods to counter the DEX growth while still increasing S-DEF, this is a very complicated build.
R-DEF
Arm Unit Room Goods (2★)
If you are not leveling DEX, use 8★ after two 9★ to avoid getting a level of DEX before level 50, then use 2★ Room Goods to bring it back down.
T-DEF
Rear Unit Room Goods (3★)
If you are not leveling DEX, use 8★ after two 9★ to avoid getting a level of DEX before level 50, then use 3★ Room Goods to bring it back down.