Here is the full list of all 50 Blade Strangers trophies - there are 40 bronze, 6 silver, 3 gold and 1 platinum.
Unlock every trophy
Win 10 League Matches Against Quote
Win 10 League Matches Against Isaac
Win 10 League Matches Against Lina
Win 10 League Matches Against Gunvolt
Win 10 League Matches Against Shovel Knight
Win 10 League Matches Against Helen
Win 10 League Matches Against Emiko
Win 10 League Matches Against Noko
Win 10 League Matches Against Kawase
Win 10 League Matches Against Curly
Win 10 League Matches Against Master T
Win 10 League Matches Against Liongate
Win 10 League Matches Against Ali
Win 10 League Matches Against Solange
Win 30 Matches During Heat Up
Clear All 14 Characters' Challenge Mode
Win 10 League Matches in a Row
Earn Rank Soldier (2nd Class) or Higher
Participate in 100 Online Matches
Successfully Evade 10 Throws
Clear Lina's Story Mode
Clear Every Characters' Story Mode
Clear Shovel Knight's Story Mode
Clear Gunvolt's Story Mode
Clear Isaac's Story Mode
Use Heat Up 30 Times
Clear Quote's Story Mode
Clear Helen's Story Mode
Clear Curly's Story Mode
Clear Emiko's Story Mode
Clear Noko's Story Mode
Win 40 Matches with an Ultra Skill
Clear Kawase's Story Mode
Clear Master T's Story Mode
Win a Match by Time Out
Win 20 Matches with a Perfect
Clear Liongate's Story Mode
Accumulate 24 Hours in Training Mode
Get Thrown 10 Times
Clear Ali's Story Mode
Use Ultra Skills 30 Times
Clear Solange's Story Mode
Successfully Throw 20 Times
First Win in a League Match
Get Hit by 30 Counter Attacks
Successfully Counter 20 Times
Fought in a League Match for the First Time
Fought Online for the First Time
Perform 6 Successful Combos