Best Bait Bot?

Not sure why your baiting reds. Are you saying away from a beacon? I don't think I'd allocate a slot to that.

But if you insist, I'd say it needs to be fast, like an ecu/Taran Gareth. . Being slow and easy to catch sounds like bad bait.

Actually I've run Schutze + Ancile few times already. Got 2 wins, 1 near win, 2 loses (in BR and my league is Gold 3). Usually I tag along with the blue. Walking alone is indeed a bad bait.

So my next experiment is with Boa & Nat.

Triple beer keg Fury or Dual beer keg Raijin!

Nah... naked Natty looks hideous!! It's like a bald woman with four boobs on her rack! Just look at the front of Natty! Even a naked Schutze looks sexier, em' long legs! 

Bait doesn't really work as well as you might like in higher leagues. You get pretty good at using the lock button to shoot the squishy Griffins hiding behind ancilots. That said, the twin ecu twin ancile Natasha works pretty well as a walking shield. Pair up with an ancilot and walk sideways in front for maximum effect. Alternatively, something annoying like a spiral or hydra setup can be awfully distracting. Generally the dpm of both strategies is so low though you might be more of a liability to your team.

I can try this in my experiment. Since I'm still in lower league, there is no harm in trying few fun things.

LOL. Your son is genius!
I can consider this if I have Hydra.

The liability comes from a low damage output and poor territory control.

The spydra setup has at least some value as an anti mid-range, a finisher, and it suppresses enemy movement. The downside is that the low damage output puts a lot of pressure on your team's knifers to pick up the slack. The build is also not good at taking or defending beacons. This translates into a risk that your team will mech out or lose due to beacons while you sit back picking off randoms from a safe place near home beacon. 

The twin ecu ancile Natasha helps your knifers but it is totally toothless and slow as heck. The enemy only needs to kill your buddy and there are ways of doing that. Flanking, shooting past you, or simply destroying your shield while out of your partners range. I'd go for something that is going to always be useful rather than sometimes good.

My 2 cents: best bait 'bot is a plasma Gary capping beacons. It seems to make me every red's idea of breakfast. It also has the advantage of (1) being fast and manoeuvrable; (2) caps beacons so helps the win that way too; (3) packs a punch - you can do a lot of damage with a Gary - so helps the win that way too.

What works to bait me: disco Patton, or anything with Trebs. Any red not capping beacons without appreciable firepower is an asset to blue - I want it to live as long as possible.

Bait bot? Orkan Rogatka all the way. Allow me to explain...

At the beginning of the game, every Treb sniper wants your Rogatkas bones. As long as you know this, you can very carefully (!) occupy enemy sniper targeting while capping the early beacons and your friendly snipers can take out the Treb Butches, Furys, or Treb Gekko Natashas. Not always an easy task, especially if your team drops with no snipers. In that case, just let the Lancelots, Galahads and other stronger/more protected bots blaze the trail.

It's also the PERFECT bot to bait RDB Griffins. Stand out in the open to draw their salvo at 500m and then simply jump over it. Try to land behind cover when you evade their Tulumbus because an experienced RDB pilot knows their only chance to get you is when you land. And finally when in range, only let off a few Orkan rounds, just enough until they jump. As soon as they land jump again and unload the whole salvo - they are absolutely HELPLESS. If you follow this, there is no real good reason why you should lose to an RDB or DB Griffin, unless you are significantly underlevelled, they have enemy assistance, or they perfectly judge their single jump to land behind cover with their teammates.

However, the main thing you don't want to be bait for are Plasma setups, or anything with Tarans or Zeus. Every bot has its counter, and the art of this game is getting your bots into situations which highlight what it is good at, and avoiding situations that accentuate its weaknesses.

No bots get in and out of situations as effectively as the Rogatka. The dashbots will rigorously challenge this, but they are yet to be released and may prove to be initially difficult to obtain. So give it your consideration. I know you were probably more interested in those Ancile troll bots, but with the Orkan Rog you can bait AND counterattack.

Is that suggestion too conventional to warrant your attention?

I could see an Ancile/Ecu Boa as being halfway decent.  Large health pool and isn't insanely slow.  Could also be a meatshield/support mech to keep up with a variety of others.  That being said, if you're playing as a random, your team is now a man down from a damage-dealing standpoint.

Don't forget we're talking about bait bots here, not necessarily what's the best all-around useful team bot -- their objective is not to inflict damage or control territory, but rather to draw fire away from teammates and distract the enemy from controlling territory. I've inadvertently found myself in this situation, usually going after a beacon close to the enemy spawn but finding it too well protected to try to grab myself. If I see I have the attention of more than one red, I'll milk it for all its worth and let them chase me as far away from the action as possible. Best bot for this for me is the plasma Gareth -- it's fast, annoying, and I don't mind the eventual sacrifice because it's the lowest damage-dealer in my hangar. If I can't find another beacon to cap, I'll do the next best thing and drag reds around the field. At the very least I can keep a couple of reds out of the action for awhile; I might also get lucky and lead them closer to friendlies who'll take them out easier than I can; at best (and my favorite), I lead them close to spawn where I'll switch to the bot that will take them out myself (hello Mr Red, meet Mr Orkan).

Again, I don't go looking for these opportunities specifically -- I don't have a designated 'bait bot' -- and I'm sure the higher you go in leagues, the fewer players will fall for this kind of shenanigans; but if I see them, that's how I try to take advantage of them.

The liability of a baiting bot is that you are sacrificing real metrics like dpm and territory control in order to try to force baiting opportunities. The reds may not take the bait. Even if they do, yielding beacons and time in exchange for dragging them around might be less effective than just blasting them and taking the beacon instead. That is the liability of a baiting bot. What you are talking about is a well-balanced bot that can steal beacons, flank, assist, and bait when the opportunity to bait if it presents itself.

For me, the best bait bot is one that is low on health.