Kahliel’s Tribesman is the cheapest harad ally (tied cheapest with the Southron Refugee). Usually, when there's a really cheap ally people assume that it's not great. Not the case with this ally. Decent stats, but it's the ability that shines. By exhausting the tribesman you get to boost another Harad character's stats by 1. For example, you can make Firyal 6, or Yazan 6, or Jubayr 6 with three tribesman.

Who they work well with:

Kahliel

Jubayr

Yazan

Firyal

Southron Refugee.

My opinion: 6/10

I love this card so much. Perhaps I'm biased because I love the desert Harad expansions, but to me it's a sweet card. The art is amazing and so is the ability. Kahliel has an ability that allows you to discard a Harad ally from your hand to ready a Harad character in play. The Headress basically cancels that action. So you discard a Harad ally from your hand (it might even be a useless copy of one of the unique Harad allies, who are already on the table) ready a Harad character in play, then exhaust the Kahliel's Headdress and shuffle it back into your deck. It could be a problem if the ally you put back into the deck was a unique ally (Firyal, Jubayr, Yazan) that is already in play, because it's a dead card when you draw it, but you can always discard it again to ready a Harad character. I haven't even got to the boost. Each Harad character gets +1 is huge. That could be 5-6 extra , or 1-2 , but that can still make a huge difference. It is a shame that it's restricted, so Kahliel can only have 1 weapon, shield, whatever, if the Headdress is in play. '

Who it works with:

Obviously Kahliel

Jubayr

Firyal

Yazan

Kahliel’s Tribesman

Southron Refugee.

My opinion: 8/10

A very fun and useful card. Throughout the game the dwarf trait has focused on discarding cards from the top of your deck. This is one way to almost prevent the discard. Although this is a good card, it's not great, and there are other card such as Reforged, Stand and Fight, Dwarven Tomb, Erebor Hammersmith, Will of the West, etc. who basically helps reset your discard pile and keep as much of your deck as you can.

Who it works well with:

Zigil Miner

Dáin Ironfoot

Thorin Stonehelm

Well-Equipped

Ring of Thrór

My opinion: 5/10

There's one thing to note that might bump your rating - because the pipe triggers after the discard, rather than replacing the discard, you can get the resources from Hidden Cache and then immediately get it back into your deck, where it's just one deck shuffle away from being mined again (and if your deck is small enough, you might not even need that). I haven't tried that out because I don't have this card, but the combo sounds pretty good to me. —
Yup, i don't own hidden cache but that would work just fine. —

A pretty fun card to play with, but some obvious downsides. First of all, while this card is good there are other ways to draw additional cards in this game, but still an extra card a round for the first player isn't bad. Second, this card is literally Bilbo Baggins. A few downsides to this card is that it costs 1 resource and it takes 6 progress to complete.

Who it works with:

Círdan the Shipwright because he gets to choose between 3 cards now, which ones he keeps and which he discards.

Thurindir because he can dig the side quest out at the beginning of the game, and of course his boosts for each side quest explored.

Any hero with Steward of Gondor because sometimes you have all the resources in the world, but nothing to spend them on.

Legolas so you can discard cards to ready another hero.

Arwen Undómiel extra cards to grab extra resources.

My opinion: 6/10

In my opinion Kahliel is a super fun hero. I love those heroes who are the heads of their archetypes. For example, Radagast and creatures, Saruman and doomed, Hirluin the Fair and outlands, etc. While his ability isn't great as there isn't a ton of Harad allies, it can still be game changing (hopefully when/if fantasy flight makes more expansions, Harad is a trait they might come back to).

Who he works with:

Denethor to get Steward of Gondor out on him early.

The Storm Comes to have help with paying for the big allies.

Elrond and Vilya could help bring in some of the harad allies.

Errand-rider to transfer spare resources over to him.

Of course:

Firyal

Yazan

Jubayr

Kahliel’s Tribesman

Kahliel's Headdress

Haradrim Spear

Southron Refugee.

My opinion:

Fun Factor: 9/10

As a hero: 6/10