I prefer artifact ramping thats cheaper, giving me more turns with the mana, or that develops your board more permanently such as Sol Ring and Solemn Simulacrum
White/black: Tokens Midrange Even as a WB fan, I have to admit this seems like one of the less cohesive color pair archetypes
If they don't have it, you must start from the first chapter as usual
These cards are generally easy to pull from packs and often include basic Pokmon or low-cost trainer/support cards
Wall of Junk (card draw) Living Wall (resilient) Quicksilver Wall (card draw) Dragon's Eye Sentry (1 drop) Wall of Mulch (card draw) Wall of Kelp (card draw + more creatures) Wall of Resistance (can become huge) Amaranthine Wall (resilient) Hornet Nest (token generator, can then use the 1/1 deathtouch flying as chum blockers, to be explored I think) Builder's Blessing (anthem effect) Tower Defense (potential wincon) Slagwurm Armor (just makes things bigger) Solidarity (wincon) Bar the Door (wincon) Oathsworn Giant (anthem effect) Forbidding Watchtower (flavor) Geist of the Archives (card advantage) Sight of the Scalelords (anthem) Forgotten Ancient (another big guy) Conjurer's Closet (flicker triggers) Verdant Sun's Avatar (life gain) Belligerent Brontodon (another Assault Formation) Bramble Sovereign (more ETB effects, tokens are permanent which is very nice
The 3/5 also has Reach to keep you well-defended