There are also obvious perks like the ability to turn the self discard into a positive thing
Cards like Wrath of God or Damnation can turn a losing game into a winning one, so long as you play your other cards right
You may choose new targets for the copies.) 6.6/10$0.44 Besmirch Sorcery Until end of turn, gain control of target creature and it gains haste

Alpine Guide Asmoranomardicadaistinaculdacar Beamsaw Prospector Behemoth's Herald Bioengineered Future Biotech Specialist Birthing Pod Blood Speaker Brave the Wilds Canyon Crawler Case of the Stashed Skeleton Cateran Overlord Corpse Harvester Courier of Comestibles Dawntreader Elk Defense of the Heart Demon's Herald Diabolic Intent Diligent Farmhand Dimir House Guard Dragon's Herald Edge Rover Eldritch Evolution Elvish Reclaimer Entish Restoration Escape Tunnel Evolving Door Fateweaver Fiend Artisan Flare of Cultivation Fleshwrither From Beyond Fugitive of the Judoon Galactic Wayfarer Garruk, the Veil-Cursed Generous Ent Glacier Godmaw Goblin Engineer Growth Spasm Hibernation's End Hour of Victory Illicit Shipment Kav Landseeker Kyscu Drake Lagomos, Hand of Hatred Larval Scoutlander Lithobraking Magus of the Order Natural Order Neverwinter Dryad Oashra Cultivator Orbital Plunge Orchard Strider Ordeal of Nylea Path to the World Tree Perilous Forays Primal Growth Radioactive Spider Razaketh, the Foulblooded Return from the Wilds Sakura-Tribe Elder Savage Order Scrounge for Eternity Seedship Agrarian Servant of the Stinger Shadow-Rite Priest Shadowborn Apostle Sidisi, Undead Vizier Springbloom Druid Sprouting Goblin Summon: Fenrir

There are some super-cool dual ink cards, and some fantastic new cards for constructed formats
To choose a creature type, you must choose an existing creature type, such as Lizard or Wizard