I dont think LoE has done that tho. I'll have to think bout that somemore. But LoE has way less impact on my decks then WoTG
Each adventure has the biggest impact when it is newest. LoE's influence peaked before OG was released.
Going through the cards:
Obsidian Destroyer - extremely strong Arena pick, but always just out of competitive play
Jeweled Scarab - sometimes used in Control Shaman decks
Forgotten Torch - standard in Freeze Mage, sometimes used in other decks
Reno Jackson - gave birth to an entirely new deck archetype
Dark Peddler - run in 100% of Warlock decks AFAIK
Tunnel Trogg - filled a gap in Shaman and made Aggro Shaman top tier
Ethereal Conjurer - used to be auto-include in Tempo Mage, but now it's iffy because of Conjurer's Tome
Mounted Raptor - standard in Deathrattle Druid and Beast Druid
Tomb Spider - strong Arena pick, sometimes used in Beast Hunter pre-OG
Unearthed Raptor - basically created pre-OG Deathrattle Rogue
Fierce Monkey - used to be heavily used in Patron Warrior, but that's a dead deck now
Reliquary Seeker - often picked from Dark Peddler
Brann Bronzebeard - created new super-strong combos, especially post-OG
Excavated Evil - frequently used in Priest
Keeper of Uldaman - standard in Paladin
Huge Toad - standard in Hunter
Gorillabot - good Arena pick, is used in Mech decks when people still use them in Wild
Anyfin Can Happen - led to Murlocs being used for the first time ever and birthed a new archetype
Sir Finley - frequently used in aggro decks
Entomb - probably the second most hated card in the game pre-OG
Tomb Pillager - standard in all current Rogue decks
Raven Idol - used in Yogg Druid
Museum Curator - frequent inclusion in Priest decks, especially N'Zoth Priest
Elise Starseeker - single-handedly changed the control mirror matchup
Wobbling Runts - good Curator and Arena pick
Desert Camel - created a new Hunter deck archetype
Arch-Thief Rafaam - used in Tempo Warrior
Look at that list. Here are the cards that rarely, or don't, see play:
Explorer's Hat
Djinni of Zephers
Ancient Shade
Anubisath Sentinel
Summoning Stone (sometimes)
Rumbling Elemental
Sacred Trial
Dart Trap
Everyfin is Awesome (sometimes)
Jungle Moonkin
Murloc Tinyfin (sometimes)
Pit Snake
Naga Sea Witch (inb4 Dahbomb)
Fossilized Devilsaur
Cursed Blade
Animated Armor
Curse of Rafaam
Eerie Statue
There are significantly more good cards in the set than bad ones. Even then, many of the bad cards had good ideas, but poor execution. Cards like Naga Sea Witch, Pit Snake, Animated Armor, and Curse of Rafaam are interesting ideas that didn't play out in the meta. I personally have an Explorer's Hat love, and I once lost a game because I had 10 hats in my hand and couldn't draw cards. :-(
Compare that to the current adventure, and I think it's clear why people are disappointed.
Do people think there is no chance Malchezar will work in a fatigue/monkey deck? Seems like the card has been written off as trash. Are we making the same mistake that was made in evaluating Elise to begin with?
I think it might see play in a Fatigue deck, but those aren't strong right now, which is why people are rating it poorly. Even Blizzard admitted that the card is primarily designed for newbies to experience cards they don't have.