Since your whole strategy is built around ramping up your
Beast of Burden with your Economy, you need to make sure that it's actually able to swing.
The best way to do that is by scaling your defenses and finding ways to let your
Beast of Burden swing faster.
Scale Your Tankiness
Whether it's by Shielding, Healing, Health stacking, or all of the above you need a way to survive long enough to strike back.
Pygmalien has a ton of these items, but one of the stand outs is the
Lemonade Stand.
Since you're already buying and selling items,
Lemonade Stand lets you double dip by scaling your Max Health when you sell Small items.
Another good option is the
Belt, which greatly improves your Max Health - very potent if you've already scaled a decent amount.
Decrease Your Cast Time
The other angle your supportive items should focus on is lowering the Cooldown of your
Beast of Burden - the faster the better.
This is because your biggest threats are the builds that can Freeze, Slow, or rush you down.
If you can get one swing off, you should be able to win your matchup since a lot of builds won't be able to survive your scaled damage.
These are options like
Phonograph and
Stained Glass Window which offer significant Cooldown reduction.
You can also consider options that offer Charge and Haste, though it's up to you and what you find during your run.
Regarding Skills
Skills aren't as important compared to other builds since most of your gold is going to item stacks, but
Big Guns is a really good one to look for if you're playing
Beast of Burden .
If taking skills is your best option at choice points, look for ones that help your Economy or survivability.
Luxury Tents Variant
The restructuring of level-up rewards has allowed many new powerful strategies to emerge, many of which only exist due to specific enchantments. While these technically existed in the past, they were never at the forefront since enchants came at a much later time.
Luxury Tents is an item that grants +1 Multicast to all your Heal items. By enchanting an item with Restorative, this effectively turns it into a Heal item, giving it immediate synergy with
Luxury Tents.
Being able to give Multicast to an item of your choosing is ridiculously strong, and as you can obviously put together, works incredibly well with
Beast of Burden.
On top of all that,
Luxury Tents gives the build a "cheat death", allowing it a free (partial Health) revive. Alongside Max Health scaling this adds a ton of survivability and gives you a huge edge against other one-shot builds.
Even if the enemy is faster, you're guaranteed to survive their one big hit while you clobber them with yours. As for other matchups, an extra chunk of Health can make all the difference in who wins the fight.