Here is the full list of all 30 Teamfight Manager achievements.
Record the first win in the league.
Reinforce the players through recruitment.
Win the Amateur League Championship.
Win the Semi-Pro League Championship.
Win the Pro League Second Division Championship.
Win the Pro League First Division Championship.
Win the World Championship.
Win a losing game from a 0:2 deficit.
Lose a winning game from a 2:0 lead.
Acquire a piece of legendary tier equipment.
Complete the upgrade for all facilities.
Win a league title with no defeats.
Acquire the qualification for the World Championship.
Win in a sudden death situation.
Win with the same combination your opponent used in the previous set.
Renew a contract with one player for 5 seasons in a row.
Get a total of 5000 kills.
Substitute players 100x in the middle of the match.
Weaken a player's condition 100x by having the coach make unpleasant remarks.
Improve a player's condition 100x by having the coach make pleasant remarks.
Use one champion for 20 sets in a row.
Start a 4v4 match by having all the participating players pick champions they've best mastered.
Start a 4v4 match by having all the participating players pick champions they haven't mastered.
Win against an opponent with stats that are at least 10 higher than the average stats.
Lose to an opponent with stats that are at least 10 lower than the average stats.
Use the Assassin Champion at least 100x.
Achieve 15 stacks for the lethal move of the Ghost Champion.
Kill 3 enemy champions in 3 seconds.
Kill 4 enemy champions in 3 seconds.
In a 4v4 match, stop the opponent team from using any Ultimates.