This opens up the possibility for early multi-spell plays
To be real, Ruby/Emerald was not only the first starter deck I ever got, it was one of my favorites
Tireless Angler Spellbook Fleet Swallower Nadir Kraken Spined Megalodon Archipelagore Sigiled Starfish Moat Piranhas Pouncing Shoreshark Stinging Lionfish Serpent of Yawning Depths Riptide Turtle Mystic Skyfish Sea-Dasher Octopus Voracious Greatshark Wormhole Serpent Ruin Crab For flavor purposes, Tireless Anglers spellbook rules

Creatures (27) 1 Solemn Simulacrum 1 Myr Battlesphere 1 Burnished Hart 1 Grenzo, Havoc Raiser 1 Aetherstorm Roc 1 Angel of Invention 1 Combustible Gearhulk 1 Whirler Virtuoso 1 Aethersquall Ancient 1 Aethergeode Miner 1 Aethertide Whale 1 Lightning Runner 1 Brudiclad, Telchor Engineer 1 Skyclave Apparition 1 Goldspan Dragon 1 Professional Face-Breaker 1 Amped Raptor 1 Satya, Aetherflux Genius 1 Cayth, Famed Mechanist 1 Roil Cartographer 1 Razorfield Ripper 1 Salvation Colossus 1 Silverquill Lecturer 1 Aurora Shifter 1 Blaster Hulk 1 Overclocked Electromancer 1 Sphinx of the Revelation Lands (38) 10 Plains 1 Adarkar Wastes 5 Mountain 5 Island 1 Shivan Reef 1 Battlefield Forge 1 Izzet Boilerworks 1 Azorius Chancery 1 Mystic Gate 1 Command Tower 1 Temple of Triumph 1 Temple of Enlightenment 1 Temple of Epiphany 1 Mystic Monastery 1 Prairie Stream 1 Port Town 1 Aether Hub 1 Castle Vantress 1 Frostboil Snarl 1 Furycalm Snarl 1 Demolition Field Spells (35) 1 Swords to Plowshares 1 Sol Ring 1 Wayfarer's Bauble 1 Talisman of Progress 1 Coalition Relic 1 Austere Command 1 Tezzeret's Gambit 1 Bident of Thassa 1 Aetherworks Marvel 1 Decoction Module 1 Confiscation Coup 1 Glimmer of Genius 1 Era of Innovation 1 Gonti's Aether Heart 1 Aethersphere Harvester 1 Coveted Jewel 1 Talisman of Conviction 1 Talisman of Creativity 1 Arcane Signet 1 Midnight Clock 1 Akroma's Will 1 Farewell 1 Legion Loyalty 1 Scurry of Gremlins 1 Izzet Generatorium 1 Aether Refinery 1 Bespoke Battlewagon 1 Solar Transformer 1 Hourglass of the Lost 1 Localized Destruction 1 Filigree Racer 1 Conversion Apparatus 1 Stone Idol Generator 1 Unstable Amulet 1 Jolted Awake A cycle of 10 non-basic lands from the main set were also previewed

Because Humans are in every colour, they're a brewer's paradise
Whenever Goreclaw attacks, each creature you control with power 4 or greater gets +1/+1 and gains trample until end of turn