Boiling Earth
A two-mana sweeper that clears exactly one toughness is a narrow tool, but the Awaken clause is what the whole design hangs on. Cheap mass-damage spells live or die on the same problem: they are dead weight once the board has grown past their reach. The seven-mana mode answers that obsolescence directly, turning the spell into a 4/4 haste threat stapled to a still-functioning land, so the same card that mops up tokens in the early turns becomes a finisher in the late ones. That is the load-bearing trick of the entire Awaken cycle from this era: a small spell that scales by buying its own back-end relevance with extra mana, rather than printing two cards' worth of effect at a fixed rate. The tension the keyword resolves is that one-toughness sweepers age out of the game the moment the game itself moves past them, and Awaken hands that aging spell a second job. The animated body is still a land, so on turns it doesn't attack it keeps feeding your manabase; the haste means the four counters translate into immediate pressure rather than a telegraphed threat you have to leave up. Note that the land only gains those counters and haste, not vigilance, so it taps to swing and cannot also produce mana while it attacks: it is a threat that turn, a land the next. The damage half is deliberately modest because the spell is not priced as a sweeper; it is priced as a flexible mode that happens to wipe small boards when you need the cheap line and swings a game when you have the mana to spare.

