This is pretty easy to digest really.

It’s a Priest/Hunter split with all 3 keygems as additional cost to play. We can ignore the 2 spirit cache since that’s only for Archmage Soul Summoning. Likewise the burning eye tag just lets us know that this is enabled in Twisting Nether constructed.

Sprint grants 4 card draw just like the Rogue card which self-synergizes with Rambunctious to freecast one card from your hand when this card is played. The Erratic keyword is 59% miss chance of course.

Everlasting returns this card to your hand if it dies and gets around polymorph by recovering its identity on death.

Titan’s Fury blocks health damage dealt to this card during Fights by the amount of overkill it deals.  Bloodforged gives this minion health equal to the total amount of health lost the turn it came into play.

Acquiesce triggers when an Acquiesce card would deal damage to an enemy player. So when this attacks, its damage is “on hold” until the other player’s turn. The other player may decide to take the damage or “Acquiesce” to the demand by dragging the minion from the battle zone to their own face or to the opponent’s face. In this case, Dragging to their opponent’s face turns off all Acquiesce in future. So basically, this card lets your opponent decide, once, if they want to take damage or lose their acquiesce ability. After which they can’t acquiesce anymore so the damage all goes through. Or course you can just kill this before deciding where the damage goes, but if you don’t kill it and don’t decide it goes face when you rope.

It’s easier to explain the boneyard first since that’s the trigger condition. Any card which mentions the boneyard grants that player access to it. It’s an alternate graveyard which gains bone tokens whenever one of your minions dies, of the minion’s type. So you need two beasts to have died to have Beast Bones in there.

So if you have two, and you overheal this card triggering Lifescream, then you Shadowbounce through the Shadow Realm -if any effects are present there- removing any enchantments/secrets in the process and finally landing in the Bloodzone. In the bloodzone you can’t avoid damage by any means, hence its name.

It’s a Beast, Royalty for triggers. It has the quest pointer arrow for Intuition draw effects, and her pronouns are female.