I've been diddling with a mono red version for a budget friend (sub-$40 USD I believe) and the madness 'combo' turns are definitely house, but it's a little more madness-focused than the BR builds.
Incorrigible Youths is the key to all (or most of) your most explosive plays and I'm surprised Reid didn't have four.
Ravenous Bloodseeker plays very well when you're sitting on a lightning axe and no target or an olivia but no more creatures to trigger her discard. You just want a critical mass of madness enablers for the youth plays. Having a bunch of 2/xs and no atarka's command-type effect isn't great when your world is flooded with
sylvan advocates and
thing in the ice.
I'm really not a big fan of alms of the vein- I'd never want it in my opener, really.
Remorseless Punishment never does what I want it to- there are too many knobs to twist to get this card to do what you want. The most powerful I've seen it be is my opponent tapping out for gideon with three cards in hand at 13 life (gasp) or something. They agonized over discarding to one card, sacing his token (gideon would die to combat) and dropping low- I think they eventually sacrificed Gideon and took five. Then I lost. Not pleased with the card.
For reference, the mono-red build:
SOI Budget Mono Red
Just want to get a playable main since red's sideboard cards are pretty narrow right now. Bloodmad Vampire in particular seems gross, but it's really quite nice as 'bonus' to your lightning axe or similar- thing hits HARD.
Sketched up a list that actually wants Arlinn Kord- decks were coming out real weird; best one so far:
SOI GR Aggro
I started with 4 Arlinn then tried to find a reasonable number of creatures to simply overpower the opponent. I started alright then felt a little lost until I remembered SIN PRODDER! This guy is sweet!
I wanted to play a couple dark-dwellers and was running out of 'bomb' creatures (with Mina and Denn being iffy) so I started looking for stuff they could flash back- Atarka's command seemed like a slam dunk at making our opponent dead, so I just threw it in. I started with
roasts and
epic confrontations (if there's any deck to use it, it's this one) but moved to devour and firecraft after a few games- Both murder planeswalkers and creatures! I could probably go the full 4 firecraft, really.
Poking around the lands that I could use to take advantage of a two-color deck with almost no double-color costs led me to looming spires, and it's better than I anticipated in this deck- You can swing your advocates into theirs without fear, among other things. I have atarka's commanded a looming spires into play for a huge blowout more than once!
Arlinn herself was bugged in the program I was using (xmage) and couldn't use her 0 without wigging out the program, so I just +d every game and she was STILL great! Late enough almost everything is a bomb, and making it bigger with haste is what the deck really wanted to do to begin with.
I started with 4 Westvale abby but drawing more than one actually gave me color problems more than once so down to three we go!
I originally wished the deck did more on turns one and two but after playtesting against a pretty diverse field it kinda seems like you're either vampire aggro or not doing anything until 3- haven't played against a SINGLE Jace, vryn's prodigy deck though.