mtg whenever an opponent draws a card o:"whenever player a card" or o:"whenever draws a card" or o:"whenever you draw a card" · Scryfall Magic: The Gathering Search each opponent draws a card The 72 Best Forced Draw

Thats it I guess

Usually, when the prerelease of a new MTG set is approaching, I go over the amazing Limited guides that the ChannelFireball pro players make available at TGCplayer.com

Okay, okay, fair is fair

Cards like Sun Titan are ideal for this plan, as you can use them to accrue significant value over time through creatures like Eternal Witness, Loyal Retainers, and Wood Elves, fetchlands like Bloodstained Mire, or even previously destroyed mana rocks, so having a big creature or two that can fill this role is very helpful when possible

Plus, of course, you can sacrifice a food to generate mana too, which is a very nice bonus

For example, Delver of Secrets has a triggered ability occurring when you reveal an instant or sorcery from the top of your library while Bloodline Keeper has an activated ability with a cost to transform it (in this case, paying a black mana)