it feels like a complex puzzle being assembled before your eyes
If a leader is attacked successfully, the defending player takes one damage by adding a card from their life area to their hand by drawing from their facedown pile in the life area
Beyond that go for faster lands Sanctum of Ugin, Ancient Tomb, Eye of Ugin, better ramp Mana Crypt, The One Ring for draw, the Eldrazi Titans (all), Conduit of Ruin, Void Winnower, Portal to Phyrexia, okay I'll stop now
Instead of relying on that perfect draw from the top of your deck, tutors allow you to trade that card in your hand for the opportunity to search your library and pull another card, usually into your hand, but sometimes to the top of your library
Theres a 50/50 chance that the card you receive is the Deluxe Pack variant of the card rather than the one you actually need, and theres no way to filter that out