Here is the full list of all 31 Seraph trophies - there are 14 bronze, 10 silver, 6 gold and 1 platinum.
Seraph is reborn.
Upgrade a Blessing to rank 5.
Kill the Herald.
Kill an 'enhanced' Elite (Bloody, Tainted, Dark).
Collect 25 story logs.
Kill 888 Daemons.
Obtain a Supreme Shard.
Score among the top 25% on a Daily challenge.
Score among the top 10% on a Daily challenge.
Score among the top 75% on a Daily challenge.
Post a score in Survival mode
Kill 50 enemies under the influence of the Double damage Orb
Equip a Miracle other than Orb or Repel.
Unlock a weapon, Ward or Miracle through Transmutation
Attach a Shard to an Oath.
Reach 6 pips on the difficulty meter.
Destroy a Fountain of Terminus.
Unlock Daemonsight through Transmutation
Kill 88 Daemons.
Slay a Lieutenant of Terminus.
Collect all other Trophies.
Transmute the MKII version of each weapon.
Defeat the final threat to Seraph.
Kill the Herald at difficulty 6.0 and above.
Collect 50 story logs.
Collect 75 story logs.
Transmute a MK4 weapon.
Reach difficulty 8.0 in Survival or New Game.
Kill 8,888 Daemons.
Reach difficulty 9.0 in Survival or New Game.
Defeat the final threat to Seraph at difficulty 8.0 and above.