Spawnsire of Ulamog Modern Horizons 3 conjure a card named Midnight

conjure a card named Midnight Clock onto the battlefield

you may exile a black card from your hand rather than pay this spell's mana cost

and you may cast the copy without paying its mana cost

enchantment

Binder of Wills can be your commander

Spawnsire of Ulamog Modern Horizons 3 conjure a card named MidnightAnnihilator 1 (Whenever this creature attacks, defending player sacrifices a permanent of their choice.) {4}: Create two 0 1 colorless Eldrazi Spawn creature tokens. They have "Sacrifice this token: Add {C}." {20}: Cast any number of Eldrazi spells from among cards you own outside the game without paying their mana costs.