So here are the cards that will be affected in standard and wild before the set is released (by the time this post is made not all cards are revealed yet, so there might be 1-mana spells coming in the new set)
Druid:
Standard: Claw, Earthen Scales, Jade Idol, Mark of the Lotus, Naturalize, Savagery
Wild: Living Roots, Raven Idol
Hunter:
Standard: Arcane Shot, Bestial Wrath, Hunter's Mark, On the Hunt, Smuggler's Crate, Stampede, Tracking
Wild: -
Mage:
Standard: Arcane Missiles, Mirror Image
Wild: Arcane Blast, Ice Lance,
Paladin:
Standard: Adaptation, Blessing of Might, Blessing of Wisdom, Divine Strength, Eye for an Eye, Getaway Kodo, Hand of Protection, Humility, Lost in the Jungle, Noble Sacrifice, Redemption, Repentance, Smuggler's Run
Wild: Avenge, Competitive Spirit, Sacred Trial
Priest:
Standard: Binding Heal, Holy Smite, Inner Fire, Mind Vision, Pint-Size Potion, Potion of Madness, Power Word: Shield
Wild: Flash Heal, Light of the Naaru, Power Word: Glory
Rogue:
Standard: Cold Blood, Deadly Poison, Hallucination, Journey Below, Sinister Strike
Wild: Conceal
Shaman:
Standard: Earth Shock, Evolve, Finders Keepers, Forked Lightning, Frost Shock, Lightning Bolt, Primal Fusion
Wild: -
Warlock:
Standard: Corruption, Mortal Coil, Soulfire
Wild: Power Overwhelming
Warrior:
Standard: Blood To Ichor, Charge, I Know a Guy, Iron Hide, Shield Slam, Upgrade!, Whirlwind
Wild: -
(Not mentioned here are the class quests which also all cost 1 mana. There are games where you have chosen to
shuffle your quest in the deck, especially when you only face fast aggro decks and don't have The Coin.
This is very meta depending, though.)
So we know what archetypes would be affected for this meta, but when the set is released, we will see new deck archetypes (like frost shaman) and those might want to play Frost Shock. I think besides Jade Druid, the class (not the archetype) that suffers the most from Skulking Geist is Paladin: loosing all secrets is bad in wild for Mysterious Challenger decks and some good buff cards makes also quest paladin worse.
There are not much cards in the game which have a huge impact on the meta. This is one of them.
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You're going to make Deadscale Knight cry
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Quite literally "Doctor 8"
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It typically has to have specified text to refer to places other than the battlefield, without that it's assumed to just be on the battlefield.
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And here we've got the opposite of the Corridor Creeper scenario where a card is overestimated because of resemblance to existing cards
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Good to see Blizzard's still 2 expansions behind, giving Druid garbage because they just received all their broken KFT shit
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wish daddy would make toys out of me
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Remember when Dalaran Mage had to be nerfed down one attack because it was seeing too much play
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Are adult gnomes lolis? Does loli classification age vary by race? Is this an official raising of the loli draft age to increase loli army recruitment numbers? Are elderly gnomes lolis? Are adult dwarves lolis? Is Rotface a loli?
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Is this something beyond normal bog beasts that makes it an elemental, or should the others be tagged too?
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Minions can't trigger off of themselves dying, because they're dead