Another inconsistent card. You can have full crap of spells but you can aslo cast 3 fireballs to face, 2 blizzards and pefect secret. And again, card is way to powerful sometimes for you to skip using it but it can also lose you the game if you play it!
I know sometimes it casts fireball to face to help me win, sometimes freezes the board 2 times in a row but sometimes cast 2 0/2 taunt on oponents full board. Why cards like this exist?
Its supposed to be inconsistent. Its NOT Zephrys.
Its a card that generates value over time. If you can survive the tempo loss required to play him (or get lucky so he casts Blizzard first turn), it will “HELP” you get through the midgame and put you in a better position late game, assuming your opponent doesn’t destroy it.
Its a 6 mana card. If it casts Blizzard when you want it to, you got your 6 mana worth, with a 5/5 minion thrown in, AND 5 durability so everything after that is profit.
Its supposed to be “helpful”, not totally OP. If it worked like the original Zephrys, and cast the BEST spell every time, it would only ever cast Fireball or Blizzard, depending on your opponent’s HP and board state. Getting a high-cost spell is a literal “highroll”, and getting a low cost spell is a lowroll.
If you don’t like RNG, then this card probably isn’t for you. Then again, if you don’t like RNG, this GAME probably isn’t for you either.
What is a “full crap of spells”???
It is not if you get the value. But it is wide variety of outcomes. Imagine both players play the card. They paid the same amount of mana. One gets 2 blizzards, 3 fireballs and secret and other gets 3 times mirror image, 2 secrets and frostbolt. How is that fair?
Its RNG. The idea is that you will get highrolls and lowrolls, and that your luck will balance out over time. Its like rolling a dice… sometimes you get a 6, sometimes you get a 1. But (in theory) it evens out over time. The “fairness” happens over time.
In fact, its something like rolling a 10-sided die. There are 10 spells, and (if all are considered “helpful”, you have a 10% chance of getting any of them.
Also, the spells are not chosen totally randomly. Every turn, the AI looks at the game state and decides which spells will be “helpful” and which won’t.
Spells which are not considered “helpful” will not be cast. Of the remaining “helpful” spells, one will be cast at random. The AI doesn’t look for the “most helpful” card, ANY “helpful” card is equally likely to be cast.
Here’s what the wiki says about how it works:
Notes
The Magic Wisdomball works similarly to Zephrys the Great with limitations. It evaluates the current game state, and randomly casts one of the spells deemed useful.[1]
The exact evaluation mechanism is unknown, but some examples are as follows:
If the opponent has at least one 1-health minion, Arcane Missiles has a chance to be cast.[2]
If the opponent is at 3 or 6 health, a damaging spell has a chance to be cast at the enemy hero for lethal.[3]
If the player has cards left in their deck, Arcane Intellect has a chance to be cast.
It should be noted that no interaction with the Wisdomball is guaranteed. Certain spells are tagged as “useful” or “not useful” at the end of the turn, and a random useful spell is cast. The bar for what makes a spell useful is assumed to be very low. For example, Arcane Missiles is deemed useful against a board with six 10/10s and one 1/1.
Spells with targets will always target enemies.[4]
https://hearthstone.wiki.gg/wiki/Puzzlemaster_Khadgar
I would add to the notes that:
1: Arcane Intelligence will not be cast if you have 8 cards in hand, as drawing would cause you to overdraw immediately and/or at the start of your next turn.
2: Mirror Image will not be cast if your board is full.
3: Counterspell and Ice Barrier will not be cast if you already have that secret in play.
4: Blizzard and Flamestrike will not be cast if your opponent has no minions.
5: Polymorph will not be cast if your opponent has no targettable minions
The notes say that Arcane missiles will only cast if the opponent has a minion with exactly 1 health. That leaves only 2 cards: Fireball and Frostbolt, which are always considered “useful” so can always be cast.
So… the game looks at all 10 options, rules out any that are not considered “helpful”, and rolls a dice to pick what you get.
So, up to a point, you can avoid certain “unhelpful” spells by ensuring the conditions are not met at the end of the turn. Obviously, this means if your opponent has a minion with exactly 1 health, you should kill it to avoid getting arcane missiles.
Its RNG. The idea is that you will get highrolls and lowrolls, and that your luck will balance out over time. Its like rolling a dice… sometimes you get a 6, sometimes you get a 1
Is this roll the dice game? Why not roll the dice at queue and who gets higher number wins the game? At this point every single effect is rng, what is the point of that?
And in fact it is not that simple. I do not have stats to back this up, but i am sure it is not pure probability. You have more changes when you are behind, so much more times it has insane back comback options. They thought it will be better that way…
Spells which are not considered “helpful” will not be cast.
Yes, but sometimes it will cast fireball into face to win you the game and sometimes it will not cast blizzard to save you from dying. So it is just based on some other logic or rng. So you play the game and plan some turns but then you lose on pure rng. How is that ok? And i understand it happens sometimes, but in this game it happens every time. Game is based only on rng!
It sound like you may not get or clearly understand situational “ Hearthstone”
The Puzzlemaster Khadgar, works half the time due to those other unknowns , which cause you to win or loose . Where I can see a lot of what your saying , my thought’s are to build it and the puzzle box will come with your answers.
Various games rely on situational process to know what’s about to happened or something close . I E a board clear on your opponents turn, after your went full tilt on your side.
If you plan ahead , and as others have said RNG is a curse or a blessing, you may get what your need or you may not.
This again goes back to situational thinking and knowing certain aspects or your turn and foreseeing your opponent’s possible outcome’s from what you just played, In response to their last draw.
My example is this :
I played Elise’s location with raptor’s and + 2 attack where my board was near or almost lethal. My opponent a DK , play’s corpse explosion to clear my board. I had to wait for my next refresh on the location to attempt a win, via my board had lethal.
My Puzzelmaster Khadgar gave me “ Counter spell, My opponent play corpse explosion , Counter spell resolves and I win.
No player, will get the best outcome every time but if you at least know the possible outcomes that’s half the battle. Good luck on your next outcome with this Wizard 
Yes, my point. You can not plan ahead in Hearthstone! It became fully RNG game, or how you nicely said it, it is roll the dice game now.
You can play and build for 5 turns just to lose to a single Yogg in the box. It happened in my games several times, not just once, win and lose. And it was when one players was clearly ahead and closing out the game, other play just played Box and turned the game around. Now you tell me how realistic is that, what is probability for that to happen because it happens to oftern. Why can you play bad, be on the verge of defeat, and then win just off of one card?
I don’t where you get that your can’t strategize a hearthstone game.
You seem more focused on your inability to control every aspect of a random situation that clearly need to be yours to win and if you don’t the game was rigged or some manipulation happened not to your liking. I thought this was about Puzzelmaster not yogg?
This game is about situational thinking and other aspect that make it fun.
If your on the side of just spouting off toxic fumes of why you loose and how often maybe you should take a break. It’s a game, It’s not your life or a reason to be this focused on one aspect of the game. We all loose to something that upsets us or some other crap.
I gave your a realistic situation, that I have had and also gone to the other side of the coin and lost badly , no one can adjust to everything . I just wanted to give you a way to plan , not just get upset if you loose to bad RNG. You can plan , strategize and use common tactics to overcome situation that your in. Its not all a lost cause and even if you loose , try try again.
I get your frustrations in every way it sux to loose to some random crap or just a minor miss play or even a terrible deck that cheesed a win on you, but again its just a game.
I get that Op did not like the outcome , but this in a nutshell is how the game is .
If your using an example to back up the randomness of “ Puzzelmaster”
Yogg in a box is absolutely the worst you can use.
That card is so messed up in so many ways I won’t explain it .
To your realistic question , I never said any of these situation were in the realm of being realistic or facts. I am lost with your thoughts here because losing happens and it can happen a lot or more often because not knowing the situation and what can be the results for bad plays to bad RNG period.
If your just wondering why you loose to one card this is “ Hearthstone” not hello kitty Island adventure.
“The difference in wining and loosing is most often not Quitting.”
Walt Disney
And what if rng from minion and spell effects are removed? Players will still cry about RNG, because unless you can choose the next card you draw, that’s what card draw is. You don’t know what you’re going to draw will be, you just know what it COULD be
No, you obviously do not play hearthstone. You can not control any aspect of hearthstone.
Just lost Arena game on pure random effects! It was not one, but 3 random effects in a row that had to happen in order for my oponent to not lose and on top of that it generated insane value which countered all my resources i invested. Just pure random, there was no skill involved.
If you want more details. I knew my oponent does not have board clear and he was lacking on cards so probably can not do much to protect face from demage i had on board and i generated some random face cards, so a bit specific. My oponent went all in into evovle minion that generated big taunt minion that spawns 5 cost or more minion. Ofc it generated another taunt of 8/7 that is reborn and deathrettle! So i was close to win few turns in a row and exhausted my oponents cards so he has nothing else. But he clicked one buttone and countered all those turns i was preparing lethal.
So this was just pure RNG and it happens so often when player is on the ropes! You would know this if you play the game.