Finally, Arcane Maelstrom is still very affordable to pick up and to upgrade
This deck would cast Squandered Resources, sacrifice all lands to Natural Balance, then cast Cadaverous Bloom, and then pitch cards to generate mana and draw more cards
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You can also use mass flicker abilities like Eerie Interlude or Semester's End on all your scarecrows so they re-enter and help you clear a good amount of the board
It's a strictly worse version of Gaea's CradleGaea's Cradle (although this one taps for mana even without creatures, so maybe...), but this can be said for the vast majority of lands in the game
The early game is about preparation, using Greens powerful ramp spells like Cultivate to build a solid mana foundation