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