With the completion of M15 draft 2 let's start up the 4th one!

Pack 1:

Chord of Calling
Gargoyle Sentinel
Gravedigger
Dissipate
Void Snare
Satyr Wayfinder
Crippling Blight
Scrapyard Mongrel
Generator Servant
Sanctified Charge
Siege Wurm
Raise the Alarm
Goblin Roughrider
Invasive species

Chord of calling seems right.

I think it's Raise the Alarm; Sanctified Charge is the only other white card in the pack so we're in a position to cut it.

The pack has strong green cards, hopefully everybody on the left starts fighting over that.

In any keeper draft, chord is the pick. I kind of think gravedigger is the best card in the pack, but I have never played with chord.

The problem with forcing white is that it's the best/most popular color so we might just end up screwing 2 people (including ourselves).

Especially when the other white card is still good, I'd not be bold enough to think I could cut it.

The thing about Chord is that it's a second copy of the best creature in your deck, except this copy has convoke and flash (and is technically more raw mana, but convoke). It's a better grab pack 2 or 3 when you've landed a serious bomb, but I think it's still better than gravedigger (often a mediocre pick, though still solid mid-pack) here.

Chord of Calling.

Gargoyle Sentinel

This is really impressive in RU artifacts. I played against Chord, and it was not impressive.

Mongrel. There's a good chance that Sentinel wheels.

chord seems like the best pick.

Gargoyle. Early defense, endgame finisher, with no color commitment involved.

Based on playing against it, chord isn't fantastic. It does break parity, but it doesn't automatically fetch you a bomb.

I'm going to go gargoyle here. I stops the early decks, blocks well on the ground and in the air, and provides evasion.

Pack 1:

Chord of Calling

Next...

Constricting Sliver
Staff of the Wild Magus
Shrapnel Blast
Carnivorous Moss-Beast
With's Familiar
Typhoid Rats
Evolving Wilds
Ranger's Guile
Welkin Tern
Crowd's Favor
Peel From Reality
Soulmender
Goblin Kaboomist FOIL

Kaboomist or Sliver?

I'm going to go with the cheaper option. Goblin Kaboomist.

Welkin Tern

Kaboomist then draft all the hammerhands.

Kaboomist

Kaboomist

BOOM!

I was about to switch my pick from Chord to Garg too.
I think early kaboomist is good. Another option is to take Rats and force BG; I think chord goes pretty well with that (you do need a bomb or two).

Boom-Boom shake the room! I guess a worst case scenario 3 mana Shock seems right. I think second best pick is Welkin Tern narrowly over the Constricting Sliver. P1P1 with Chord of Calling is right as it's worth a small amount of money I guess. Not sure I like playing it though.