Elven Chorus

Green has always played off the top of its deck: Oracle of Mul Daya and Courser of Kruphix put lands into view and let you play them, while older enchantments loosened the timing on creatures the same way. This one narrows that lineage to creatures alone but pays for the restriction with a clause its ancestors never carried, turning every creature you control into a color-fixing mana source. That second half recontextualizes the whole card. A board of green stompers or a tribal wall of bodies stops being just a clock and becomes a manabase, so the creatures you reveal off the top double as the fixing that eventually funds the next one. The compounding is real but patient: a creature played this turn cannot tap for mana until it has been under your control since your most recent turn began, so the mana engine runs a full turn cycle behind the topdeck engine rather than in lockstep with it. The two halves want the same thing (a battlefield already flooded with creatures) instead of pulling against each other, which means the ceiling scales directly with how committed the deck was to going wide before this ever resolved. On an empty board it still lets you see and cast creatures off the top, but the mana half does almost nothing; every point of that payoff is a function of how many bodies were already down, and how long they have been down, when the top card starts mattering.