Having access to a Sun Titan at such a low mana cost is wonderful, and you should play it in your white decks
The most impactful card is probably Exterminio, which would translate literally to Extermination but probably references to Overkill, the mechanic from Final Fantasy X, . Exterminio is a black instant removal spell with an interesting twist: setting a creature's health to -9999 plays around indestructible
(Under construction) STS miscut Team Rocket Test card Printed with holofoil on both the reverse and obverse
once you have an abundance of mana, you can look to get multiple triggers from Nathan with cards like Strionic Resonator and Aggravated Assault
4 Kyurem ex SIR Foil Number in Set: 165/086 Following the trend of special illustration rares, the Kyurem ex SIR is right up there among the top rarest cards that players are seeking out in Black Bolt - and it's already reflected in the market value of the card, with prices for the raw card already hovering around the $80 USD mark