Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight

Two Gods sharing one card, and the split is a philosophical argument about how creatures should be deployed. The dawn face front-loads: convoke on every creature spell you cast turns a wide board into a mana engine, letting you dump your hand a turn early and paying for the next threat with the last one's body. It rewards flooding the table fast. The twilight face back-loads: persist on every other nontoken creature you control turns that same wide board into something that refuses to stay dead, each nontoken body good for a second life before the -1/-1 counter finally sticks. One half wants to cast creatures cheaply; the other wants those creatures to come back. The transform tax is the pivot that keeps either mode from being free: you pay in your first main phase to swing toward the recursion engine, to swing back toward the cost reduction, and the color you spend signals which half of the game you think you're in. A 5/5 flier with lifelink on both faces means the clock and the life buffer never leave, so the choice is never about survival; it's about whether this turn is for building the board or cashing it in. The design bets that a player who can flip the same permanent between "go wider" and "go longer" on demand will find a rhythm neither half offers alone.