Here is the full list of all 30 Seraph achievements.
Score among the top 10% on a Daily challenge.
Kill 8,888 Daemons.
Defeat the final threat to Seraph.
Reach difficulty 8.0 in Survival or New Game.
Kill the Herald at difficulty 6.0 and above.
Collect 50 story logs.
Score among the top 25% on a Daily challenge.
Seraph is reborn.
Score among the top 75% on a Daily challenge.
Transmute the MKII version of each weapon.
Collect 25 story logs.
Equip a Miracle other than Orb or Repel.
Unlock Daemonsight through Transmutation
Post a score in Survival mode
Kill 50 enemies under the influence of the Double Damage Orb
Kill 888 Daemons.
Kill the Herald.
Kill an 'enhanced' Elite (Bloody, Tainted, Dark).
Upgrade a Blessing to rank 5.
Reach 6 pips on the difficulty meter.
Destroy a Fountain of Terminus.
Kill 88 Daemons.
Slay a Lieutenant of Terminus.
Obtain a Supreme Shard.
Attach a Shard to an Oath.
Unlock a weapon, Ward or Miracle through Transmutation
Collect 75 story logs.
Transmute a MK4 weapon.
Reach difficulty 9.0 in Survival or New Game.
Defeat the final threat to Seraph at difficulty 8.0 and above.