People haven't been posting many builds lately, so I thought I'd post something. Here's the Beastmaster list I'm currently running. I keep tweaking things, but this is what it looks like after the last round of tweaks:
Creatures (23)
Bitterwood Fox x6
Thunderdrift Falcon x6
Feral Bobcat
Steelclaw Grizzly
Redclaw, Alpha Male
Timber Wolf
Equipment (13)
Mage Staff
Ring of Beasts
Enchanter’s Ring
Elemental Cloak
Bearskin
Gauntlets of Strength
Leather Boots
Regrowth Belt
Wand of Healing
Conjurations (21)
Mana Flower x2
Tooth and Nail
Rajan’s Fury x2
Battleforge
Tanglevine x6
Wall of Thorns x2
Enchantments (32)
Nullify x2
Marked for Death
Ghoul Rot
Agony
Bear Strength x2
Vampirism x2
Falcon Precision
Mongoose Agility
Cheetah Speed
Regrowth
Rhino Hide
Reverse Attack
Decoy
Incantations (27)
Dispel x3
Knockdown
Dissolve x2
Teleport x2
Force Push
Battle Fury x2
Rouse the Beast
Attacks (4)
Hurl Boulder
I like to open with a pair of Mana Flowers on turn 1. That gives me the channeling I need to support a strong mid game swarm play. On turn 2 I typically play a Ring of Beasts and either Steelclaw or Redclaw. Steelclaw is better against an early Idol of Pestilence, Mordok's Obelisk, or Suppression Orb, but Redclaw does a better job of supporting a swarm.
Here's my thinking on the card selection:
I need a good number of Thunderdrift Falcons and Bitterwood Foxes in order to be able to keep swarming if my creatures are getting killed regularly. They benefit more from Rajan's Fury than Feral Bobcats since they have Fast, and I'd rather use nature creatures than Darkfenne Bats since I want a bunch of them. Darkfenne Bats are expensive to include in decent numbers. I have the Feral Bobcat in there as a cheap guard. If the defense works, it ends up being an incredibly efficient defensive play. Even if he gets one shotted, that works out to the equivalent of a Block, which is fine. Redclaw, Alpha Male is there to support a Bitterwood Fox swarm and potentially a Timber Wolf Pet. Steelclaw is there is the best 1 big option available so far, and because he's great against many of the things swarms struggle against. I have the one Timber Wolf as a Pet option. I often end up using a Bitterwood Fox or Thunderdrift Falcon Pet, but it gives me some options for 2 big strategies with either a Steelclaw or Redclaw and a Timber Wolf Pet.
I don't always end up using most of my equipment, but it's there for long games and whenever my opponent does something to shut down swarms hard. I like to include an equipment option so that I can play without swarming, de-emphasize swarming, or choose to focus completely on swarming. It opens up options so that I can do whatever makes sense in a particular game. I know that it makes more sense to run Dragonscale Hauberk or Storm Drake Hide at the moment, but I felt like using the Beastmaster's actual armor. Eventually there will be something that it helps against...
Tanglevine is one of the most efficient answers to big guarding creatures. It has some added utility to allow kiting or prevent kiting, but mostly I run a bunch because they're cheap and I need a way to get past guards without bleeding little creatures constantly. At some point I'll probably drop down to 4 or so, but I ran out last game, so I figured I'd trying running 6. It's not like they cost many spell points. I don't have quite enough channeling without the Mana Flowers to support some of the swarm plays I prefer, which is why I tend to open with 2 Mana Flowers. Wall of Thorns is included in order to control positioning, and because it has nice synergy with swarms of level 1 creatures. It's also nice to have the option to Force Push someone through it if I want to beat my way through a Forcefield or they don't have any armor. Rajan's Fury and Tooth and Nail are there to make my swarm stronger. Getting extra attack dice is stronger in general than +Piercing, but +Charge is somewhat situational. I like the split of 1 Tooth and Nail and 2 Rajan's Furies because it gives me some advantage even if my opponent locks down movement, but it really discourages kiting my swarm, and Thunderdrift Falcons benefit significantly against grounded creatures. Battleforge is there to support an equipment play should one be required.
I have a good distribution of enchantments. Marked for Death is ideal for supporting swarms. Ghoul Rot is a nice way to increase the pressure on my opponent when I'm in their face with a swarm or a few big creatures and an equipped mage. Agony is a nice way to shut down multistrike creatures and make the Forcemaster less scary. Reverse Attack is there as a great answer to damage races and generally help against beatdown. The rest are there to let me buff myself and my creatures. I particularly like to play Vampirism on my Steelclaw Grizzly.
Most of the incantations are pretty standard utility or attack options. I like to have 2 Teleports so that I have good mobility options. Battle Fury is mostly for use with my Steelclaw, my Timber Wolf Pet, or my mage. Dissolve is mostly for Wands with Sleep, Chain Lighting, or zone attacks and Suppression Cloaks. Rouse the Beast is primarily there for Timber Wolf.
Hurl Boulder is a nice attack spell that's good at finishing things off. I'll probably add a Hurl Rock when that spell comes out so that I have a cheaper option, and so that I have 2 attack spells. One doesn't seem like quite enough, but I'm not sure that I want 2 Hurl Boulder, and I'm using the rest of my copies of that spell in my Earth Wizard build anyway.
I don't include Lair or Fellella. Lair is too expensive, and really slows down aggression. I can either have a big creature like Steelclaw or Redclaw, or I can have the Lair. I much prefer the big creature. Fellella was a much harder cut. I really like her, but she's quite weak to Idol of Pestilence, and I just don't have the mana to support Fellella, build a powerful swarm, and get a big creature out early. As I've been moving towards these powerful mid game swarm plays, I've been moving away from using Fellella. Fellella is also quite fragile, being vulnerable to both unavoidable attacks and direct damage.
Thoughts? Suggestions?