If SHR Paladin is a thing, they might be desperate enough for SHR summoners to run this. However, I don't think SHR has the consistency yet to be a competitively viable archetype. There is also the fact that Soldier's Caravan isn't consistent enough of a SHR summoner to help bolster the archetype's power as you feel miserable if this doesn't survive a turn, which a likely outcome.

If Secret Paladin works, it will be because of this weapon. This naturally curves into Northwatch Commander and Crossroads Gossiper, not to mention that this also thins your draw so you're more likely to draw your secret support cards instead of your secrets. I wouldn't be surprised if this has the highest mulligan win rate of any card in the archetype.

The natural curve follow up to Sword of the Fallen. It also helps that it can't draw secrets. This helps solve that aggressive Paladins have: a lack of card draw, and will definitely see play in the archetype thanks to the weapon.

You generate a card while your opponent draws a card. I'd say your opponent is getting the better deal and that is nowhere near worth +1 stat above vanilla stats.

I think for one mana more, you get a more effective buff and board development from Arbor Up for a Token Druid deck. The one attack buff for four mana might prove to be too inefficient at aggression for Token Druid.

This is Arcane Breath for one more mana, but no dragon restriction and can go face. Arcane Breath was a powerful and versatile card, and I think a one mana tax for more flexibility won't hurt Runed Orb's chances of competitive viability.

Dreamway Guardians was always a solid on-curve play in Token Druid decks and Thorngrowth Sentries will serve that same roll. There is some concern about Token Druid's viability without Savage Roar, but I think cards like Guff Runetotem can help replace Savage Roar.

The classes that care about spell damage already have efficient spell damage cards like Imprisoned Phoenix that isn't limited to one spell. I think Talented Arcanist doesn't do enough for any class to run it.

A likely two-card combo to achieve an effect that's normally three mana for at least seven mana is too slow and inefficient as you don't care too much about the body since it doesn't have an additional defensive effect. Taurajo Brave makes Krolusk Barkstripper look like a five star card.

The cheating-out of cheap minions is something Zoolock would want to do, but having it occur on a non-aggressive body and as a delayed effect will make Apothecary's Caravan something Zoolock doesn't want to run.

A delayed effect for an inconsistent reward. Just run Psychic Conjurer instead.

Buff spells with no effects like lifesteal or taunt generally want to be utilized in an aggressive fashion, but Power Word: Fortitude is restricted by requiring a hand size of spells. This isn't something you usually achieve in an aggressive deck and decks that are more likely to have a hand of spells don't care for the effect.

The frenzy effect is going to result in 1-2 armor most of the time since your opponent will have the initiative in triggering the effect. I mean, you could nuke your own minion to get more armor, but that seems like a lot of hoops to jump through and mana to use to get at most six armor.

A delayed effect for a delayed payoff. Not a combination that works in any class for the most part, especially in Hunter.

This is basically Crimson Sigil Runner but doesn't require the outcast effect. Given how Paladin doesn't have too much card draw, they'd love a one-drop to open their game and draw a card. The only Paladin deck that might not run Knight of Anointment is Secret Paladin since they don't want to draw their secrets, but I'd say it's close in that deck.

So much for Eviscerate leaving standard. Eviscerate is a proven card, and you often don't play it in the first few turns unless something desperately needs to be removed. Wicked Stab (Rank 1) just goes into any Rogue deck that would run Eviscerate.

Blood Shard Bristleback is basically an Acolyte of Agony until later in the game. The tricky thing is that you want the six damage earlier on in the game, and that damage starts to fall off later in the game once the effect becomes active. Thinning your deck with cards like Soul Rend don't seem effective as you risk discarding Bristleback. Overall, I think you'd want to focus more on removal that works when you want it to.

Since we know that both Soul Shear and School Spirits will be shadow spells, Tamsin Roame seems like a great way for Control Warlocks to duplicate spells they really like to play for free (also with an initial three mana tax).

With a few exceptions, this is effectively steal half a minion's stats. Control Priest may like running this to help remove a minion with a smaller removal tool like Holy Smite, but Control Priest also doesn't care about having stats on their board most of the time. Also, there is the issue that Serena Bloodfeather doesn't remove the targeted minion, leading to a card with removal inefficiency that Control Priest may not want.

Discarding cards from your deck without being able to control what they are most of the time is a serious downside that risks you losing your win conditions. Warlock already has draw that can help them reach fatigue quickly whether it be Life Tap, Free Admission, or Mortal Coil. I don't think Warlock needs to destroy their own deck to achieve the fatigue synergies or destroy their opponent's deck with Altar of Fire when Tickatus exists and doesn't destroy your own deck when corrupted.