Eidolon of Blossoms

Green's enchantment payoff cashes out the deck's whole density into raw cards, turning every aura, every god, every enchantment creature into a Phyrexian Arena trigger that fires the moment a permanent resolves. The structural cleverness is that it counts itself: as an enchantment creature, its own arrival draws a card, so it is never a dead enchantment-payoff stuck on an empty board. Where green has long had to buy card advantage through combat damage or sacrifice, this collapses the conversion into the act of building out a board you wanted anyway, with no extra mana sunk and no body to throw away. The cost is fragility. A 2/2 is the kind of thing every deck has an answer for, and constellation rewards repetition, so the engine wants to survive multiple turns of enchantments hitting the battlefield to pay for itself. That tension (an explosive draw engine welded to a body that dies to almost anything) is what keeps it honest: it asks an enchantment deck to commit before it can profit, and punishes the greedy turn where it dumps its hand into removal range. For the archetype it serves, it is the closest thing to a Glimpse of Nature that stays on the table, refilling on every enchantment rather than every creature spell.