Run lots of cards that let you sacrifice and reclaim lands from the graveyard, and any kind of benefits from playing lands (Landfall), and you can demolish players life totals with Hearthhulls second power: sacrificing a land makes each opponent lose two life
12: Resculpt Im a little more willing to spend an extra mana on a removal spell than a counterspell because you dont always need it ready at the exact right time, you can wait until the right moment to answer something
A huge burst of keywords is much better for closing out games than a mana discount, and Cosmic Spider-Man comes down much earlier, too
10 Tokens The Strength In Numbers Approach Whether theyre 1/1 Goblins or 6/6 Wurms, creature tokens in Magic are a great way to bolster your board presence
You might also consider running Horn of Gondor to increase your human creature count, or Karvanista, Loyal Lupari to spread out +1/+1 counters on attacks, or even Cloaked Cadet for some extra card draw
These cards will change the game and bring new ways to play