primal groudon pokemon card EX Primal Clash | Pokémon Colorless Gaia Volcano (100+) If there is any Stadium card in play Jumbo Primal Groudon TCG Box

Although few details about battle cards are known, WotC disclosed that battle cards are double-faced and appear in every March of the Machine Draft and Set Boosters

Invasion of Ixalan For two mana, Invasion of Ixalan provides a nice cheap way of grabbing a useful card from amongst the top five cards of your deck

Blossoming Bogbeast If you want a green lifegain payoff, look no further than Blossoming Bogbeast

A great realtor could sell you on the Forgotten Cellar but on the other hand, creature tutors and gravediggers like Ramunap Excavator which suits more budgets, so weigh your pros and cons and send your down payment which should be less than $10

To summarize

As I mentioned before, things are more complicated than this when you consider cantrips, card advantage, and such, but this should give you a good start for making sure you have the right number of lands in your deck