The three deeds for the dragonsblood focus collection "Chasing Tales: Asaliea the Channeler" are:
Chasing Tales: Storm's Eye - Defeat the temporal storm elemental in Thunderhead Peaks.
Chasing Tales: Locus of Power - Use a focus to slay 30 enemies in Thunderhead Peaks.
Chasing Tales: Torrent of Magic - Defeat 30 enemies while wielding a scepter and a focus at the same time.
I do not know which of those three is actually deed #3 for the purpose of this collection, but I have all three achievements and deed #3 is not checked, so for the time being the Ascended Focus is blocked for me.