In most decks, it'll be hard to use this super well.
Warlock though: Plot Twist and Gaslight Gatekeeper. Put those two together and this can become a problem, and I do think people will actually try this out.
Rogue absolutely has ways to break this. They're basically masters of using cheap, spammable cards and this makes your cheap, spammable cards even more cheap and even more spammable. Especially works really well with Minis, especially Sandbox Scoundrel.
Really hard to make it more than just that though since you can't really plan around what you'll get. People are of course still going to try to play it for the fun factor.
New Hunter Minion - Painted Canvasaur
I don't think random Bonus effects are worth Putting this into your deck.
New Neutral Minion - Playhouse Giant
Insane with Gaslight Gatekeeper.
New Hunter Minion - Painted Canvasaur
Very great card.
Hunters are already good at swarming the board. Play this on any board and you've got a force to be reckoned with.
New Neutral Minion - Caricature Artist
Cant wait for mustache Odyn to slap me in the face
New Druid Spell - Ensmallen
They thought they could get away with ramping without us noticing. Looks neat
New Neutral Minion - Playhouse Giant
In most decks, it'll be hard to use this super well.
Warlock though: Plot Twist and Gaslight Gatekeeper. Put those two together and this can become a problem, and I do think people will actually try this out.
New Rogue Minion - Sonya Waterdancer
This will break the game sooner or later.
New Neutral Minion - Tar Slime
Minion heavy decks now un-phased by the Flame Imp or Coin+Knife Juggler.
This is what Zombie Chow could have been, but silenceable.
New Hunter Minion - Hemet, Foam Marksman
Very underwhelming. The Tokens of this Set don't even have Rush, so this is hard to activate.
New Rogue Minion - Sonya Waterdancer
Rogue absolutely has ways to break this. They're basically masters of using cheap, spammable cards and this makes your cheap, spammable cards even more cheap and even more spammable. Especially works really well with Minis, especially Sandbox Scoundrel.
New Neutral Minion - Origami Crane
Great Art, decent effect. Could See play.
New Shaman Spell - Pop-Up Book
Looks eh. These 0/1 are Just Not impactful at all.
New Neutral Minion - Origami Crane
Remember Vol'jin? This is him now.
The 1 Health funnily makes him better because a lot of classes can just ping the minion down their Hero Power after you play this.
New Demon Hunter Weapon - Umpire's Grasp
Good Card, but Not enough Demon Support.
New Shaman Spell - Pop-Up Book
Fun and quirky card, love it already
New Warrior Spell - Wreck'em and Deck'em
I don't Like how specific it is, but it's brutal on a Testing Dummy.
New Rogue Minion - Sandbox Scoundrel
I can already smell the Cutterbutter shenanigans Pirate Rogue is will be cooking up...with a burst of flavor!
New Demon Hunter Weapon - Umpire's Grasp
Demon cheat for DK, maybe will help with Magtheridon shenanigans
New Hunter Minion - Hemet, Foam Marksman
Really fun card.
Really hard to make it more than just that though since you can't really plan around what you'll get. People are of course still going to try to play it for the fun factor.
New Druid Spell - Ensmallen
Strong mana cheat, will see play in every druid deck i think
New Demon Hunter Spell - Red Card
Maiev failed, so I guess this will Just be a Discover Option.
New Neutral Minion - Caricature Artist
Flavour out of the water, but effect is alright
New Neutral Minion - Cosplay Contestant
It's not going to be great since it will just be a vanilla 3 mana 3/4 in almost all situations.
That said, it's still a hell of a lot better than Harbinger Celestia, and the flavor is great too.
New Neutral Minion - Colifero the Artist
Strong card, but requires too much setup
New Paladin Spell - Flash Sale
More Even Pally support but without any handbuff synergy. Seems DoA.