Reducing Bosh's Cost - Quick Question

[Mynus]

Bosh - Sacrifice Artifacts - EDH

First, this is not meant to be a high powered deck, I originally built this deck for $15 after seeing it on Commander's Quarters; it has received a few upgrades but not a lot.

So here is what I am looking for - I want to make the Bosh, Iron Golem ability more affordable.

• I have Kurkesh, Onakke Ancient to make activating it multiple times more affordable.
  
• I will be adding Heartstone and want to know if there are any more cards like this that fit into Bosh.

Zirda, the Dawnwaker would be amazing if it wasn't for those pesky white pips.

Thanks for any help.

[Landale]

Battlemage's Bracers, Illusionist's Bracers, and Rings of Brighthearth can serve as Kurkesh redundancies.

A simple scryfall search isn't turning up anything that'd work like Heartstone in monored except for that card itself.

[The Golgari Guy]

You can use Thran Turbine, although this would mean that you have to use the ability during your upkeep. It's a pretty cool card although a bit niche in its applications.

[Slyvester12]

In the same vein as The Golgari Guy, Braid of Fire could be useful.

[Mynus]

You can use Thran Turbine, although this would mean that you have to use the ability during your upkeep. It's a pretty cool card although a bit niche in its applications.

In the same vein as The Golgari Guy, Braid of Fire could be useful.

Ooh, thanks, I like these ideas. I don't mind sacrificing during upkeep with the right cards and in the right situation, and with Braid of Fire I could potentially get multiple sacrifices in the right situation.

-edit-

Combined with Horizon Stone, both of these could be fun, it is all colorless at that point, but that shouldn't matter.