Tarkir: Dragonstorm was particularly rich with them, featuring Voice of Victory, Clarion Conqueror, and Mistrise Village all in one set
Cavern Harpy is the card that made the Aluren decks run by letting you duplicate effects on queue, with the rest of the pieces being able to fluctuate with the format and times
Virtue of Knowledge would no doubt benefit from cards with "enter the battlefield" and other similar triggered abilities
Alphabetizing tokens wont cut it While you can sort your tokens per type and alphabetically, youll run into issues

Abyssal Specter Air Elemental Anaba Shaman Angel of Mercy Angelic Page Archivist Ardent Militia Avatar of Hope Aven Cloudchaser Aven Fisher Aven Flock Balduvian Barbarians Beast of Burden Birds of Paradise Blinding Angel Bloodshot Cyclops Bog Imp Bog Wraith Brass Herald Canopy Spider Canyon Wildcat Carrion Wall Cinder Wall Coastal Hornclaw Coral Eel Craw Wurm Crossbow Infantry Daring Apprentice Deathgazer Deepwood Ghoul Diving Griffin Drudge Skeletons Dusk Imp Dwarven Demolition Team Eager Cadet Eastern Paladin Elite Archers Elite Javelineer Elvish Champion Elvish Lyrist Elvish Pioneer Elvish Piper Elvish Scrapper Emperor Crocodile Enormous Baloth Fallen Angel Fighting Drake Fleeting Image Foratog Fugitive Wizard Fungusaur Fyndhorn Elder Gaea's Herald Giant Badger Giant Cockroach Giant Octopus Giant Spider Glory Seeker Gluttonous Zombie Goblin Chariot Goblin Glider Goblin King Goblin Raider Gravedigger Grizzly Bears Hill Giant Honor Guard Horned Troll Horned Turtle Hulking Cyclops Hunted Wumpus Intrepid Hero

This means that you can get a three willpower and six health character out for only three ink, which is an excellent deal