mtg card effects How does the 1/1 effect last in Magic the Gathering? Lifeline from Urza's Saga (1998).

Listing is for a single booster box

Notably, removal spells on Thassas Oracle wouldn't stop it, as the trigger is independent of the creature and would still win the game

Heroic Intervention Accumulate Wisdom Return of the Wildspeaker Benevolent River Spirit Rites of Flourishing Boomerang Basics Taunting Challenge Crashing Wave Captain Sisay Ember Island Production Eladamri's Call First-Time Flyer Fevered Visions Flexible Waterbender Join the Dance Forecasting Fortune Teller Koma, Cosmos Serpent Geyser Leaper Rhys the Redeemed Giant Koi Cityscape Leveler Gran-Gran Meteorite Honest Work Sundial of the Infinite Iguana Parrot Dark Depths Invasion Submersible Fabled Passage It'll Quench Ya

And his Magic: The Gathering card is no slouch either

1 Swords To Plowshares + Aetherflux Reservoir + Jumbo Cactuar All That Life Has To Go Somewhere Alright, now for a truly weird combo, one that can keep you alive and nuke all your opponents into oblivion