Probably gonna pickup Mage Wars on Friday (core set), woho .

Anyways, been reading some threads about either it's best to get a second core set or 3 Spell Tomes.
I would LOVE the extra stuff you get from the core, but it SEEMS that if you only plan on playing 1v1 or your opponents also own the game going with 2x Spell Tome 1 + 1x Spell Tome 2 is superior in terms of cards?

But, the plan is to start with the other expansions, which order would you get them in if you were buying in quite slowly?

These are the ones I seem to find:
Forcemaster vs Warlord
Druid vs Necromancer
Conquest of Kumanjaro