Other than companions, which had their own problems, and Grief, which can be cast for free, White Plume Adventurer is actually the highest mana value creature banned in Legacy
No list like this would be complete without Bazaar of Baghdad, either, which went from 47 words to seven, cutting 40 total words
It works well alongside other value lands that go to the graveyard, like Kamigawas channel lands or Strip Mine and friends
1 Tergrid, God of Fright A stellar commander who is arguably one of the strongest new commanders printed in 2021, Tergrid, God of Fright effectively allows every permanent discarded by an opponent to be stolen by Tergrid's controller
Its Reverse Holo version from its original printing would likely be even more valuable if it hadnt been reprinted in Ascended Heroes
Creature - Eldrazi Drone