mtg choose a background cards Beta Magic: The Gathering - Wikipedia

Once your opponent finds enough lands, all it takes is one lucky draw step and all your hard work could be undone

When you do, tap target creature an opponent controls

Card Text: Vigilance Creatures you control have ": Add one mana of any color." When Enduring Vitality dies, if it was a creature, return it to the battlefield under its owner's control

Sisay, Weatherlight Captain can search for a legendary permanent (though that activation uses one of each color, technically making Sisay's color identity all 5 colors on a white card with only 1 white and 2 colorless mana needed to cast.) Sisay is one of the rare MTG tutors that could also be a commander