The Cyclonic Rift is the better card in this case I would say. Gives you more flexibility, early game you can bounce an early threat off for at least a turn and late game can bounce the whole field back into their hand and possibly cause them to have to discard a few of those cards. Mutilate may or may not kill the threat and only targets Creatures, also only happens at sorcery speed.

I'm still wondering why you dont have any Dimir Charm great counter spell as well as creature destroy and mill as well. Use these to replace the Psychic Spiral

i would put in Call of the Nightwing for you Undead Alchemist

if i were to replace the alchemist it would probly be with more counter spells or anti agrro

All i would do to this deck is

-3 Undead Alchemist

+3 Wight of Precinct Six

that way, your creature count flows smoothly.

Mana cost...

T1 Jace's Phantasm

T2 removal

T3 removal Wight of Precinct Six

T4 removal

T5 Consuming Aberration

T6 Proceed to BLOW THEIR MIND

Wight of Precinct Six is definitely an early drop that can get very powerful, very quickly. It has great synergy with both control decks because of the targeted removal and mill decks. Undead Alchemist is a tougher card with a more useful ability. However given the mana cost and the fact that the wight COULD end up being better than the alchemist in terms of power / toughness I would say that Vos is right and it's worth a trial, definitely.

I'm building a new deck because i like The Big Black Wight...

DECK NAME.

DONE.

The Big Black Wight bwhaha

I've been working on a version of a Dimir mill deck as well. It works quite well, but I need to figure out my sideboard. It makes use of the Consuming Aberration, Wight of Precinct Six, and Jace's Phantasm, but tacks on Invisible Stalker with Paranoid Delusions to proc with the Consuming Aberration and Talrand, Sky Summoner. I call it Dimir Mill-Stomp.

Only problem with wight is that it fails when facing control decks. I'll consider sideboarding it though.

You put Wight of Precinct Six into the sideboard against control decks then.

A perfect card to subtract from your main deck in that situation.