Conjure, Seek, and giving cards perpetual buffs or debuffs are the main draw
Punishing your opponents for this with five damage to the face, especially when they cant regain it, can be tricky for them to work around
Setting aside the utterly random bit of artifact-hosing (which I guess is a reference to Mirrodin Pure defeating the colored Phyrexians), theres an interesting riff on cards like Platinum Angel, Lichs Mirror, Angel of Grace, and Exquisite Archangel
and Grendel, Spawn of Knull is only in charge of four decks, despite being a giant, evil dragon
Omen of the Sea is the perfect card for every blue deck
Its nice that we can affect the board and the graveyard at the same time, and its a wrath that Commander mill players should definitely include if theyre not mono-blue