The ability to thin out your deck at a whopping rate of three basic lands at a time is absolutely massive, especially if youre on the draw, as you will always at least for the first five or so turns usually be able to trigger this upkeep ability
Its also a big flavor win, since it fits really well in a Jhoira, Weatherlight Captain deck which also cares about historic cards
Finally, a new version of Ezuri, Ezuri, Claw of Progress is the Commander in "Swell the Host, a Blue/Green deck that feels very Simic in its experimentation
Skull Clamp was the scourge of the tournament scene nearly 20 years ago, but with only one in the deck, it could still be hugely useful
When the next restricted list announcement rolled around, a pretty unheard of number of cards were simultaneously added to the Vintage Restricted List: Crop Rotation Doomsday Dream Halls Enlightened Tutor Frantic Search Grim Monolith Hurkyls Recall Lotus Petal Mana Crypt Mana Vault Mind Over Matter Mox Diamond Mystical Tutor Tinker Vampiric Tutor Voltaic Key Yawgmoths Bargain Yawgmoths Will This list included most of my deck (every card but Force of Will, Defense Grid, and City of Brass would end up restricted at some point), as well as lots of other cards that were part of other broken decks that were feared to be the next to rise up
STONECOIL SERPENT No, youre reading this correctly this is not an Ikoria spoiler