Adeon Hawkwood

Containment does two things:

Whenever you use a control power from your primary in addition to the normal mez effect it has a 20% chance of applying a mag 1 mez with a duration of two-thirds the nominal mez duration. The net effect is that when you use a mez it has a 20% chance to affect a boss but only for two-thirds the time (although you can always follow up with a second application to keep him mezzed through stacking). It's important to note that mez powers in your secondary (such as Thunderclap or Ice Arrow) do not get this benefit.

The second benefit from containment is increased damage. Whenever you attack a foe who is mezzed (specifically immobilized, held or stunned) you deal double damage. This works like critical hits or Scourge in that the base damage of the power is doubled so all damage buffs apply to the bonus damage. This effect should apply to all powers (Primary, Secondary and Pool) except for the pet powers although in practice there are a handful of pseudo-pet powers which also do not benefit.

Hmmm... maybe put monkeys into the LT spot. They could throw... something... as a ranged -fly power.

Well technically the objective is "Defeat All" not "Kill All". You aren't a random psychopath, you're making sure that all members of a dangerous gang are properly remanded into police custody.

Personally I just craft any recipes I want to store and store the enhancements instead. That being said I can definitely see a recipe storage item being nice to have (I'd make it a Computer to reference the old idea of using a PC to store cooking recipes).

The change was in the issue 21.5 patch. As for why? Best guess is that with the store Paragon is planning to steadily increase the number of cosmetic pets available and as such wanted to set a limit now to avoid server load issues in the future.

I used to run the current version of the Abandoned Sewer trial from time to time pre-incarnates. The rewards:time ratio sucks but it's a fun fight in a unique map so I used to run it for that. It actually plays a lot like a single-team Incarnate trial and I always kind of hoped they'd make a level 50/Incarnate version of it but oh well.

Yeah that area of the zone could really use some map markers to make it clear. They marked all of the elevators (which people rarely use) but didn't bother to make the damn doors.

We heard you like pugs. So here's a pug for your PUG, so you can PUG while you pug.

General thoughts on the set as a whole. I think the basic selection of animals and power themes is cool (I'm not a huge fan of the boomerang, I'd think a whip would better but demons already has that).

Overall though I'd say the set is probably going to be on the low end for MM performance. It's similar to Ninjas in that you've got melee pets and stalker style Lts but a lack of control or buffs to keep everything alive.

I'll also add that the pet upgrade powers probably need to add more actual attacks. Your current versions are focused on passive buffs which are going to leave the pets short of attacks (also as a side note, recharge buffs don't work on MM pets, it's an AI thing).

If I was going to do the set, I'd probably imagine it along these lines. The Wolves are your "support" pets. You already discussed giving them a pack buff which is thematic but instead of having it as their base power make it more like the leadership powers Enforcers have in the Thugs set and affect all of your pets (although weaker because there are three of them instead of two). So something like:
Base Power: Bite (single target melee) & Fury of the Pack (dmg aura)
1st Upgrade: Claw (single target melee) & Defense of the Pack (defense aura)
2nd Upgrade: Swipe (melee cone attack) & Coordination of the Pack (to hit aura)

The Lions are basically Stalkers and I think that works. As with the wolves I'd probably give them slightly more attacks. If you look at the Jounin in Ninjas they fill a similar role in the set and have 6 different attacks. I'd probably do something like:
Base powers: two single target melee attacks one of which is also an immobilize/slow power
1st Upgrade: Stealth and Pounce as high damage knockdown attack
2nd Upgrade: A Spring Attack style power

For the Bear I'd rearrange their powers in a similar manner to the Demon Prince. Conceptually they deal some damage but aren't your primary damage dealers (the Lions do that). Instead they help keep the rest of the pets via control, debuffs and drawing aggro to themselves. To that end I'd give them something like:
Base Powers: Swipe (single target melee with knockdown) and Rise to the Challenge (like the Willpower power but without the Taunt aspect since MM pets taunting is not a good idea)
1st Upgrade: Claw (melee cone attack), Stun (single target stun power) and a Dull Pain style power (since MM pets don't get recharge it should be permanent or close to it without recharge but the actual healing and max HPs would be lower)
2nd Upgrade: A PBAoE attack and knockdown power (similar to Spinning Strike form Street Justice).

I'll chime in in support of this. I recently made a Steampunk character using the backpack and the pre-tinting was very frustrating. In particular I found it almost impossible to make it's color match the older Steampunk arm/glove pieces. I did, eventually, find a color combo that sort of matches but it's still noticeably different.