A-Guide of Souls

Two engines share one body here, and the interesting part is how they hand off to each other. The first half fires whenever any other creature enters under your control (crucially, tokens count too), stockpiling life and energy: a resource most white decks have no other use for. The second half spends four of those counters during combat to bolt two +1/+1 counters, flying, and Angel typing onto an attacker. That is the tension: the go-wide plan feeding the reserve wants small, cheap bodies and token-makers, but the payoff funnels everything back into a single threat, converting a swarm of one-drops into fuel for one decisive swing. The Angel clause is the flavor payoff riding on the mechanical one; the creature it targets genuinely transforms rather than just growing. What keeps it honest is the arithmetic. Four energy per pump is a steep tax, and the conversion only triggers on your attack, so the deck has to commit to the aggressive line rather than parking behind the incremental lifegain the front half would otherwise supply. Energy has mostly lived in artifact-and-red shells built around efficiency payoffs; wiring it to white creature-count triggers and a combat conversion is a different use of the mechanic entirely, treating the counters less as a currency you cash for card advantage and more as ammunition banked for a single lethal turn.