In practice, you shouldn't actually shuffle them into your library since they'll cease to exist as soon as Warp World finishes resolving
There are more than 50 total bear creature cards if we include cards from MTG Arenas Alchemy sets
Each of these cards has an equal chance of appearing when opening a Promo Pack, so the Gible is just as likely as the Cherrim it's a 20% chance for each
LCC - Mach Bolt 70 Lillies Clefairy ex Ability - Fairy Zone The Weakness of each of your opponents Dragon Pokemon in play is now Psychic-type
In the WotC era, printing was spread across multiple countries, including the USA, Belgium, the UK, and Australia, to meet massive demand
Your format does not rotate, and so your rare lands will always be playable