These spells almost guarantee you will draw multiple cards at once
It also grants you protection from everything until your next turn when it enters the battlefield, which makes it a good target for blink effects that can trigger that multiple times
You also score yourself an oversized spindown life counter, a themed deck box and two reference cards
Its biggest upside is its ability to turn any land into a Swamp, giving your Swampwalk creatures some play against nonblack decks

Aang, Master of Elements Abrade Aggressive Biomancy Aragorn, the Uniter Armageddon Avatar Aang Better Offer Blue Sun's Zenith Bootleggers' Stash Braids's Frightful Return Brotherhood's End Canopy Baloth Canyon Jerboa Cease // Desist Cease // Desist Cloak of the Bat Curse of Hospitality Cursecloth Wrappings Cut Down Cut Your Losses Deduce Defiant Strike Doomsday Confluence Drivnod, Carnage Dominus Earthbender Ascension Eerie Ultimatum Electrolyze Elesh Norn, Mother of Machines Emergent Ultimatum Exorcise Faramir, Field Commander Fire Lord Azula Fire Lord Zuko Firebender Ascension Frodo Baggins Fuss // Bother Fuss // Bother Gandalf the White Genesis Ultimatum Genesis of the Daleks Gift of Fangs Gimli, Counter of Kills Gix's Command Glimpse of Nature Goblin Bushwhacker Gods Willing Gollum, Patient Plotter Gravkill Grisly Sigil Halo Fountain Hardlight Containment Hazel's Nocturne Helping Hand Hopeless Nightmare Hurloon Battle Hymn Increasing Vengeance Inspired Ultimatum Jetmir's Garden Jin-Gitaxias Kayla's Command Kiora, Sovereign of the Deep Legolas, Master Archer Malcator, Purity Overseer Mana Crypt March of the Canonized Meeting of the Five Merry, Esquire of Rohan Michelangelo's Technique Migloz, Maze Crusher Mishra's Command Mm'menon, the Right Hand Moraug, Fury of Akoum
