Crashing Footfalls, Living End and Glimpse of Tomorrow are all stopped with a 0-mana Chalice of the Void other use cases for the card are for example disabling Lotus Bloom out of the Tameshi Bloom deck or preventing Affinity decks from playing their Ornithopter, Memnite, Welding Jar and co
I was only indirectly involved with that part, Garfield told me recently

Aleatory Ardoz, Cobbler of War Assault Strobe Blade-Tribe Berserkers Bludgeon Brawl Bonebreaker Giant Book Devourer Brazen Scourge Breath of Fury Butcher Orgg Cerebral Eruption Chandra Nalaar Char-Rumbler Clickslither Crackling Cyclops Cyclops Gladiator Cyclops of One-Eyed Pass Divergent Transformations Draconic Roar Dragon Tyrant Dragonspeaker Shaman Dragonstorm Dwarven Demolition Team Erdwal Ripper Final Flare Galvanoth Giant Strength Goblin Champion Goblin Grenade Goblin Kaboomist Goblin Lore Goblinslide Half-Orc, Half- Hill Giant Homura, Human Ascendant Hunter Sliver Inferno Titan Ingot Chewer Ire of Kaminari Jackal Pup Kamahl, Pit Fighter Kazuul Warlord Lightning Elemental Malicious Intent Molten Sentry Myojin of Infinite Rage Obliterate Pillaging Horde Priest of Urabrask Psychotic Fury Pyromancer Ascension Rakdos Pit Dragon Shivan Hellkite Skarrgan Firebird Slobad, Goblin Tinkerer Soulbright Flamekin Splatter Thug Subterranean Shambler Tahngarth, Talruum Hero Telim'Tor Telim'Tor's Edict Thud Uncontrollable Anger Unforge Valakut Predator Viashino Shanktail Vulshok Battlemaster Wall of Granite Wheel of Fate

One is on the palatal side of a molar, and the other the distal side of a bicuspid
There are 45 common, 30 uncommon, 26 rare, 10 super rare, 2 secret rare, 6 special, 1 DON
To choose a creature type, you must choose an existing creature type, such as Lizard or Wizard