Fetchlands This may be an obvious choice but I think the Onslaught fetchlands are important not only for Modern and Legacy, but also for Standard
(2025-06-06) Traveling Chocobo's ability doesn't copy the triggered ability
You gain X life and draw X cards, where X is that creature's power
Best of all, it's a hell of a lot cheaper than shelling out $40+ on a copy of Crumbling Ashes
The Back-Up Plan Living Death Twilight's Cal Pyrrhic Reviva Kessig Cagebreakers Nature's Resurgence Death or Glory Grimoire of the Dead Necromancer's Covenant Spider Spawning Tombstone Stairwell Balthor, the Defiled Liliana Vess Flame-Kin Zealot Madrush Cyclops It's not much, but it'll do
6 Aura Of Courage Equipment And Aura Voltron Aura of Courage is one of the precons released in Magic's first official crossover set with Dungeons and Dragons (though unlike later crossovers, it was with an IP owned by the same company)