Combo decks in these formats have traditionally avoided tutors in favor of cantripping or looting through their cards quickly, but that may be worth rethinking for black-based lists like Yawgmoth Toolbox
FromTheShire: Coming down early and auto-equipping later is solid if not exciting
Somewhat more sensibly, having two Moxes can turn A-Hullbreaker Horror into an infinite mana generator with ease
Order Disney Lorcana here.
This is the epitome of a powerful warp card, because you can either FlickerFlicker it, draw a card and put some big haymaker onto the battlefield for free, or you might want to repeat the same process but add to your land count instead, thus making sure your next go will cheat out the huge permanent you couldn't earlier
Ascension If you ever thought the best card games were all rather similar, then guess again: Ascension is a deck-builder rather than a card battler