One of the best parts of Ludevic, Necro-Alchemists ability is that it doesnt specify combat damage, so spellslinger commanders, burn decks, or life drain decks have just as much chance of getting extra cards with this partner in play as more combat-heavy builds
4 High Tide While mana acceleration is often associated with green, High Tide is a stellar mana ramp card for a single blue mana that is known to fuel strategies such as Storm
Contagion Engine is, understandably, fairly expensive to cast and use
Even against battlecruiser decks, it often finds a target in their mana rocks, disrupting their curve
Kindred cards also benefit abilities that care about the number of card types on individual cards, like how Rendmaw, Creaking Nest triggers when you play cards with multiple types
So if you can ready her after she quests, you could challenge with her and, if she is banished, she returns to your hand