Honorable Mention #2: Tradewind Rider If this list were Top Ten Spirits for Standard, this would be a clear #1 since it dominated the era with multiple egregious decks like Trade-Geddon where you cast Armageddon and then bounced every new land with this, which I built, or Trade-Awake with Awakening to untap each turn all stuff for more bounces
By 1991 Magic creator Richard Garfield had already conceptualized Magics basics, and had signed with small RPG publisher Wizards of the Coast to distribute and further develop the game
Even if Anduril isn't equipped to a legendary creature and is instead attached to a token, you'll be able to rapidly produce tokens turn after turn by attacking every turn, even if there isn't an opening.
Even before it was previewed, designer Gavin Verhey teased that it might need to be banned, due to qualities it shares with other previously problematic common cards, which already appear on the Pauper MTG banlist
It has a more impressive history than Repulse which is probably the card that should be 10th
Aboleth Spawn copying the trigger from Eternal Witness, Solemn Simulacrum, Avenger of Zendikar, Sun Titan, and friggin Dockside Extortionist is going to be amazing