Here is the full list of all 21 Paladins trophies - there are 6 bronze, 6 silver, 8 gold and 1 platinum.
Kill a player with an environmental hazard.
Get a killing blow after the Round has ended.
Get 10 Double Kills.
Kill an enemy player while you are at or below 50 Health.
Complete the Paladins Tutorial.
Die to an environmental hazard.
Win a match where the enemy team scored no points.
Get 4 Champions at Mastery 5.
Unlock 60 Talents.
Kill a player in the air who is over 100 units above the ground.
Unlock all trophies in Paladins.
Deal damage to every enemy champion in a match before any of them damaged you.
Land 5 headshots in a row without missing.
Be the only player alive in a match.
Survived more than 50 battles with less than 10% health.
Kill more than 20 enemy champions in a single Siege match.
Kill an enemy player who is on a 15 killstreak or higher.
Deal more than 100,000 damage during a match.
Kill an enemy champion after they had already killed you.
Kill an enemy player from over 300 units away.
Played a match while in a party.