Aevum Noir
I only used it once, when fighting the Gank Squad, the summoner made up this completely over-complicated plan for me and another phantom and we just completely ignored it and killed the boss anyway, was my first success with that boss since the host kept dying... So yay to co-operation.. I guess.
I love that boss fight!!!!!!
I think they nerfed it a bit.
Anyway.. it's awesome when you are lucky enough to have the right summons with you and you all coordinate just right!!!
I landed so many backstabs on the Havel wearing son of a b***h!!!!!