This flipwalkers ability to loot cards and transform into Jace, Telepath Unbound allows you to control the board with powerful spells that you can reuse from the graveyard while keeping your opponent's best attacker at bay
Foundry Street Denizen
Slobad, Iron Goblin Burst mana generation is powerful, especially when you include expensive artifacts like Myr Enforcer and Sojourner's Companion
Not surprisingly, the card hasn't been reprinted since 1993 (the very first set of Magic's existence), although there was a Mystery Booster card printed in 2019 called Problematic Volcano which effectively serves as an homage to this card, and according to Ethan Fleischer, a mechanic that worked in a similar vein was experimented with for Theros: Beyond Death in 2020
Testing Emrakul, the Promised End MTG proxy can help you decide whether your Commander deck, cube, or casual ramp shell supports it well enough
Budew's item-blocking ability is a soft counter to Gholdengo ex, but hasn't stopped it regularly placing highly in competitive events