Dystopia [Alliances] Urza's Saga and still no child has

and still no child has been born with the Mark to take my place

it enters the battlefield with three additional time counters on it

{T}: Exchange control of two target nonlegendary creatures

Nightmare Weaver onto the battlefield under your control

" —*The Book of Tal*

Dystopia [Alliances] Urza's Saga and still no child hasSet: Alliances Type: Enchantment Rarity: Rare Cost: {1}{B}{B} Cumulative upkeepPay 1 life. (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.) At the beginning of each player's upkeep, that player sacrifices a green or white permanent.