I say just answer honestly: "Tributescar"

"I seek Tributescar." you say. "How do I get back to Cityshanks?"

"There is no leaving this plane."

"Holy crap. you can understand me?"

"One's new body has new vocal chords."

"So I am stuck here forever?

"If one seeks that which one will never have, one suffers. If one seeks that which one already has, one is lost."

The being raises his hand and blood takes the form of Tributescar. It appears to be made of a cursed red metal.

"What does one seek now."

"The real Tributescar. That's a bloody fake and you know it!"

"I want the real Tributescar. That's a bloody fake and you know it!" you say.

"Then there is still hope for one."

He closes his hand and the dagger turns back into blood.

Ask him who he is and what he wants.

"Who are you and what do you want?" you ask.

He replies, "My name is Mathias. I am a Soldier of Blood, last of my kind. I seek the bloodshed of all sentient beings."

You ask, "What is this place? How did I get here?"

"This is The Land of Blood. You died and, as a chosen of Armok, your soul was brought here instead of facing oblivion."

"So there is really no getting back to the land of the living?" you ask.

Mathias says, "I have walked this plane for 4,320,260,250 years. If there was a way to leave this place I would know it."

Ask him about: -Himself (now and his past) -This dimension (any notable sights, hemomancy power amplifications or whatever else) -Armok (his relation to the 2 previously mentioned and about himself)
First thing's first, determine if it's finally blood minion army time!
I want my blood minions to be a good two feet taller than a normal human, muscular, and bound in cursed blood armor. And since people want cats for some reason they can be riding war tigers with their own battle armor. Spikes wouldn't hurt either.

You start asking Mathias lots of questions while you work on forming your blood minions.

"This place seems to amplify my hemomancy. Are your hemomancy powers the same as mine?"

He replies, "This plane is the source of all hemomantic energy. The vast quantities of blood provide ample raw materials for one to harness. One will be able to use all the same hemomantic powers as I with enough practice."

"Where is Armok and how are you related to him?"

He replies, "Armok created my kind to do his bidding. For millennia he ruled over us and we prospered. Overtime he became secretive and ultimately left this plane, leaving behind a single command. 'Let there be blood.' His current status is a mystery to me."

"There don't seem to be any other people here. What happened to the others of your kind?"

"Where do you think all of this blood came from?" He replies.

Your blood minion is starting to take shape but it takes all your concentration to convert the blood into the various required materials.

You complete your first blood minion, a muscular humanoid clad in spiked cursed metal. He rides a massive war tiger, also clad in spiked cursed metal. Mathias notices that you have gone silent and turns to see your creation before you can make another.

Mathias draws his flickering metal two-handed sword. He says, "I was hoping I wouldn't have to kill one so soon. So be it."

He charges at your blood minion.

Tell him we are just practicing for when we get back to the material plane, and we have no wish or desire to fight him.
Roll the blood minion tiger on it's back like a playful kitten... Regardless of what will happen to the rider.
I want to name the minion John.

You shout, "Please don't kill John. He didn't mean to startle you!"

Mathias says, with sword raised, "I am tasked with killing all who exist in this plane. I will even have to kill oneself... eventually."

You reply, "Then we have plenty of time. Lets all just calm down. What do you like to do for fun around here?"

"Fun? What is this 'fun' of which one speaks?" Mathias says.

Summon a pair of kludujalambuses* and teach Mathias to play traditional kludujalambus duets with us!
F is for friends who do stuff together: U is for you and me... Try it! Mathias: N is for anywhere and anytime at all: Down here in the deep blue blood sea!
...Play this. On the kludujalambuses.

You have never actually played the kludujalambuses before but you bet you can figure it out as you go.

You sing, "F is for friends who do stuff together." You try and guess where to press on the cursed fabric string. There are no frets so you are more than a little off. "U is for you and me. N is for anywhere and anytime at all, here in the big blood sea. Now you try Mathias"

Mathias sings, "F is for f- friends..." he stops singing as he flubs some notes on the kludujalambuse. "I don't think I can do this."

"Don't worry Mathias. You will get better and we have plenty of time to practice."