These are my favorite ones so far. Anise, Avatar of Ice's effect is probably my favorite, but it has the issue of the token's art being the center of the main art. I also think it should be at least an 8-Cost, just to make it a little more difficult to Freeze and copy your opponent's entire board.
I love Klai, Tiki Terror's art and it is probably the only card here with perfect Colossal art. I like the flavor of the new effect. My only concern is that the destroy effect has anti-synergy with the AoE buffs you'd find in a Treant deck, but it's probably worth it regardless. I see you already reduced Klai's Klaw's Health, but I still think this card could also be an 8-Cost with the amount of stats you're getting.
Wailor
The male seahorse trivia is a great detail, although the art being vertical is kind of weird. And you should force apply the Legendary dragon frame.
It's nice that you can manually buff it as well, but I think the passive Attack scaling is a little slow. Since unlike Xhilag of the Abyss the Deathrattle can trigger during each players turn, it might be nice for the +1 Attack to trigger at the end of both turns as well. That being said, it's probably fine to give Kavei's BellyTaunt and maybe even some Attack, because right now it can't really die before the main body does unless you buff it, but the card is designed so that you'd rather buff the main body.
R
The tokens shouldn't have a rarity gem and you should force apply the Legendary dragon frame to them. And I believe a token's cost should be based on their stats rather than their value.
I'll be honest, I don't think this really needs to be a Colossal minion. The main body and its limbs don't synergize with each other at all, which is what all Colossal minions are based around. The Splat's Splits not being attached to the main body is also unconventional, but I guess it makes sense flavorwise. Overall I think it works just as well as a single minion with "Battlecry, Spellburst and Deathrattle: Destroy a random enemy minion.", so the Colossal +2 is only really there for flavor.
I truly wish there were an option to see "sub-type" of a minion/tribe. Like, why I need to double check an art of a card whether it resembles of an Imp if the name of a card doesn't contain "Imp" or not baffles me. Had it not been mentioned, I'd not consider Vulgar Homunculus as an Imp but rather as a fat Demon. Whether you are playing on Standard or Wild, I hope to see devs implementing an arrow to the left and/or to the right of a minion type, enabling us to press and revealing its type. Demons aren't only related to Imps after all, there are also Infernals too. This will help either formats base their decks with respect to their archetypes.
Same deal goes for Treants. I see yet another 2 cards related to them and Wild format has (in)direct support to Treant Druid archetype. Why do I literally have to check every big/small tree from card artworks to search for Treants when Blizzard can literally implement same QoL feature?
As a last note, can anyone share a "nod" from official source which minions are Imps? I'm asking because I'm a Wild player and would like to know, of all minions, which ones are Imps and which ones aren't so that I can tinker with Imp archetype without messing myself around all due to "missing card artwork and/or minion type".
New Priest Minion - Partner in Crime
Really strong buff candidate, considering the copy is only summoned at the end of the turn. Should see quite a lot of play in Buff Priest.
New Priest Minion - Suspicious Usher
Not too bad, although you'll always be tempted not to pick the best option in order to not give it to your opponent...
New Priest Location - Cathedral of Atonement
Buffing and card drawing all in one. Quite a good one!
New Priest Spell - Clean the Scene
A strong clearing tool, especially after the Infuse goes off. Probably worth running at least one copy of it.
New Priest Minion - Mysterious Visitor
It has nice stats, but the Battlecry seems a little too situational to be useful.
New Priest Spell - Boon of the Ascended
Very powerful buff, specially considering the new Legendary!
New Priest Minion - The Harvester of Envy
Seems like a super annoying card. I can imagine how triggering it might be to play against it!
New Priest Minion - Pelagos
Very strong card, it has potential to create huge threats from high health minions.
New Paladin Minion - Sinful Sous Chef
Not too bad, although I'm not sure the Deathrattle can justify the deck slots to play it.
New Paladin Minion - Muckborn Servant
Decent stats and effect, it should at least see some play due to also having Taunt.
New Paladin Minion - Buffet Biggun
Not too bad by itself, and quite strong after the Infuse effect goes off.
New Paladin Location - Great Hall
Quite useful both for buffing your minions and dealing with very large threats. That versatility should make it worth running.
New Paladin Spell - Service Bell
Quite a strong drawing tool. It's a bit like Dredge, except you also draw copies. Will surely see some play.
New Paladin Spell - Divine Toll
A little too random for my taste, not sure if this will be worth running when also considering its mana cost.
New Paladin Spell - Promotion
It's very nice for its cost, so it might see some play.
New Paladin Minion - Elitist Snob
A strong card, and it doesn't even need to be played in Pure Paladin. A simple hand with a couple of Paladin cards already makes it worth running.
New Paladin Minion - Stewart the Steward
Seems like quite a nice way to buff up the Paladin tokens, as long as it can dodge silence effects...
New Paladin Minion - The Countess
Very strong card, it just might make Pure Paladin a thing again.
Absolute Unit - Card Design Competition Discussion Thread
I love Klai, Tiki Terror's art and it is probably the only card here with perfect Colossal art. I like the flavor of the new effect. My only concern is that the destroy effect has anti-synergy with the AoE buffs you'd find in a Treant deck, but it's probably worth it regardless. I see you already reduced Klai's Klaw's Health, but I still think this card could also be an 8-Cost with the amount of stats you're getting.
It's nice that you can manually buff it as well, but I think the passive Attack scaling is a little slow. Since unlike Xhilag of the Abyss the Deathrattle can trigger during each players turn, it might be nice for the +1 Attack to trigger at the end of both turns as well. That being said, it's probably fine to give Kavei's Belly Taunt and maybe even some Attack, because right now it can't really die before the main body does unless you buff it, but the card is designed so that you'd rather buff the main body.
I'll be honest, I don't think this really needs to be a Colossal minion. The main body and its limbs don't synergize with each other at all, which is what all Colossal minions are based around. The Splat's Splits not being attached to the main body is also unconventional, but I guess it makes sense flavorwise. Overall I think it works just as well as a single minion with "Battlecry, Spellburst and Deathrattle: Destroy a random enemy minion.", so the Colossal +2 is only really there for flavor.
New Mage Spell - Frozen Touch
Look at you, Frostbolt. You're all grown up now!
New Mage Spell - Cold Case
A great tool for both defense and offense. Will probably see play in most Mage decks, even the ones that don't rely on the skeletons as a finisher.
New Mage Minion - Chatty Bartender
Solid card, given how many Secrets Mage has access to. It hits face too, so that's a plus.
Warlock in Murder at Castle Nathria - Top New Cards and Best Day 1 Decks
I truly wish there were an option to see "sub-type" of a minion/tribe. Like, why I need to double check an art of a card whether it resembles of an Imp if the name of a card doesn't contain "Imp" or not baffles me. Had it not been mentioned, I'd not consider Vulgar Homunculus as an Imp but rather as a fat Demon. Whether you are playing on Standard or Wild, I hope to see devs implementing an arrow to the left and/or to the right of a minion type, enabling us to press and revealing its type. Demons aren't only related to Imps after all, there are also Infernals too. This will help either formats base their decks with respect to their archetypes.
Same deal goes for Treants. I see yet another 2 cards related to them and Wild format has (in)direct support to Treant Druid archetype. Why do I literally have to check every big/small tree from card artworks to search for Treants when Blizzard can literally implement same QoL feature?
As a last note, can anyone share a "nod" from official source which minions are Imps? I'm asking because I'm a Wild player and would like to know, of all minions, which ones are Imps and which ones aren't so that I can tinker with Imp archetype without messing myself around all due to "missing card artwork and/or minion type".
New Mage Minion - Suspicious Alchemist
Time for some mind games!
New Mage Location - Nightcloak Sanctum
Quite a strong tool. It has the potential to stall, and has the skeleton token on top. Good stuff!