Lightning Bolt was especially important at PT 1, as it was the best clean answer to Black Knight, Order of the Ebon Hand, White Knight, Order of Leitbur, and so on (since both Swords to Plowshares and Terror had giant weaknesses)
But it gets even better with its [V] ability, Ultimate End, which gives all your other creatures +2/+2 until end of turn and puts an indestructible counter on each of them
[3] Despite being labeled Rare, these cards arent actually all that hard to find (at least compared to higher-rarity cards)
Also, thanks to its increased toughness, Vivi should be able to hold its own in plenty of combat encounters
Craven Hulk Well a 4/4 for 4 that can't block alone is pretty meaningless
Characters have Strength (attack) and Willpower (defense) and can be used to quest for Lore