As others have pointed out, there's definitely some things you can do with it but it's very clunky since it relies on you having a large board of minions whilst also not running too many minions so you can draw specifically the one you want... and then you have to not draw that minion before playing Colifero.
Dragon decks doesn't really have a lot of one-sided AoEs, so this is pretty good.
In Wild, Dragon Priest can probably get by with just Dragonfire Potion and Breath of the Infinite, but you'll probably try to use this in that format too. And in Standard, you definitely play this.
The card by itself is not super incredible, but it's two bandages to be used with the new Raza + Hedanis combo so it'll probably see at least a little bit of play.
This is an absolutely insane card. It's a bit harder to use in Standard, but there's still combos with Hedanis and Reno, Lone Ranger to abuse with Papercraft Angel.
New Demon Hunter Minion - Magtheridon, Unreleased
I don't know about this one. The 3 damage doesn't seem impactful and a 12/12 isn't great either.
New Demon Hunter Spell - Red Card
Magtheridon enabler, love it
New Warrior Spell - Wreck'em and Deck'em
Very specific card, but helpful for mech warrior
New Paladin Minion - Cardboard Golem
When you finally find a form of fulfillment for fully unused Amazon boxes.
New Neutral Minion - Colifero the Artist
As others have pointed out, there's definitely some things you can do with it but it's very clunky since it relies on you having a large board of minions whilst also not running too many minions so you can draw specifically the one you want... and then you have to not draw that minion before playing Colifero.
New Priest Minion - Careless Crafter
Overheal suppor we have been waiting for, but dragon priest still sounds stronger
New Priest Spell - Fly Off the Shelves
Dragon priest will run this because he can, Zarimi will be thriving with this
New Neutral Minion - Caricature Artist
Could be a pretty good card to tutor large minions.
And then of course, there's the funny mustaches. That's just one more reason to play the card.
New Warlock Spell - Wheel of DEATH!!!
Pretty much card for every yogg in the game, Iove and hate it already
New Death Knight Spell - Lesser Spinel Spellstone
Strange this cannot fit in UUU, but they might as well push Blood DK more to handbuff instead of infinite removal.
New Warlock Spell - Table Flip
Strongest card for warlock in this set, will see play
New Priest Spell - Fly Off the Shelves
Dragon decks doesn't really have a lot of one-sided AoEs, so this is pretty good.
In Wild, Dragon Priest can probably get by with just Dragonfire Potion and Breath of the Infinite, but you'll probably try to use this in that format too. And in Standard, you definitely play this.
New Hunter Spell - Fetch!
This might be the best card of the set.
New Demon Hunter Minion - Magtheridon, Unreleased
Very fun and engaging card, but i don't think it will be playable
New Priest Minion - Timewinder Zarimi
Time Warp effect is always can be abused even with once pear game text, welcome our dragon priest overlords
New Warrior Weapon - Boom Wrench
Insane with Testing Dummy.
New Priest Minion - Careless Crafter
If Overheal Priest ever comes together, this will be a staple Card.
New Rogue Minion - Bargain Bin Buccaneer
Tempo rogue staple, but i don't think this card will be good
New Priest Minion - Raza the Resealed
Sad that Benedictus is gone, but still good with Reno or Overheal.
New Priest Minion - Raza the Resealed
Top 2 card in the set besides shudderblock. Will see Play in every priest i think
New Priest Minion - Careless Crafter
The card by itself is not super incredible, but it's two bandages to be used with the new Raza + Hedanis combo so it'll probably see at least a little bit of play.
New Shaman Minion - Shudderblock
This will breake the game at some point. Thats for sure.
New Priest Minion - Raza the Resealed
This is an absolutely insane card. It's a bit harder to use in Standard, but there's still combos with Hedanis and Reno, Lone Ranger to abuse with Papercraft Angel.
New Warrior Weapon - Boom Wrench
Love this card with potential synergy with Iron Juggernaut
New Rogue Minion - Bargain Bin Buccaneer
Great with Goldbeard and combo shouldnt be too hard to activate.