Here is the full list of all 30 Seraph achievements.
Seraph is reborn.
Collect 50 story logs.
Obtain a Supreme Shard.
Post a score in Survival mode
Score among the top 75% on a Daily challenge.
Collect 25 story logs.
Kill 50 enemies under the influence of the Double Damage Orb
Upgrade a Blessing to rank 5.
Kill 888 Daemons.
Kill an 'enhanced' Elite (Bloody, Tainted, Dark).
Kill the Herald.
Unlock a weapon, Ward or Miracle through Transmutation
Destroy a Fountain of Terminus.
Reach 6 pips on the difficulty meter.
Unlock Daemonsight through Transmutation
Attach a Shard to an Oath.
Kill 88 Daemons.
Slay a Lieutenant of Terminus.
Equip a Miracle other than Orb or Repel.
Transmute the MKII version of each weapon.
Defeat the final threat to Seraph.
Kill the Herald at difficulty 6.0 and above.
Score among the top 25% on a Daily challenge.
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.
Score among the top 10% on a Daily challenge.
Defeat the final threat to Seraph at difficulty 8.0 and above.