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