Another thing missing here that other Yu-Gi-Oh games in the past have had, is an extensive challenge mode
As for why Savvy Trader is going up now, it appears that the card is seeing play in Commanders released in Bloomburrow
Sephiroth, Planet's Heir Rarity: Mythic Rare TYPE: Legendary Creature SUBTYPE: Human Avatar Soldier CMC: 6 Mana cost: USD: $0.61 EUR: 1.23 TIX: 1.98 EDHREC RANK: 11171 (4/4) Vigilance (Attacking doesn't cause this creature to tap.) When Sephiroth enters, creatures your opponents control get -2/-2 until end of turn
Pokmon bulk prices vary by card type
As a Legendary card, this could be a useful addition to a control deck
Ancient Forest can also be a problem, as it will destroy your attacking monsters, limiting your ability to tribute Ra