Well, you'll either need to collect the cards from Arena booster packs for the sets they came in, or else directly 'craft' the specific cards you need using MTG Arena Wildcards - effectively tokens you can exchange for the exact Common, Uncommon, Rare, or Mythic Rare card you want, depending on the type of Wildcard
Still, this last part should be up to the discretion of the event organizer, but chances are that this isnt something you should expect to see in a Pro Tour or any competitive setting
Battle Menu Rarity: Uncommon TYPE: Instant SUBTYPE: - CMC: 2 Mana cost: USD: $0.25 EUR: 0.14 TIX: 0.03 EDHREC RANK: 8932 Choose one Attack Create a 2/2 white Knight creature token
Blues other tutors such as Mystical Tutor, Tezzeret the Seeker and the mage-cycle are all great but Spellseeker takes the slot here
These - and other - mechanics go a long way to stoke players' imaginations, placing them firmly in the Battle of Black Gate or the hills of Hobbiton
There are plenty of werewolves, but there are also giant beasts, strange hermits, and cryptic rites held beneath the shadow of the full moon