Reality Fracture

Jace

Land — Island

({T}: Add {U}.)
As this land enters, you may behold a Jace. If you don't, this land enters tapped. (To behold a Jace, choose a Jace you control or reveal a Jace card from your hand.)
{2}{U}, {T}: Empower Jace 2.

Theorist's Sanctum

Edge of Eternities

Robot

Secluded Starforge

Land

{T}: Add {C}.
{2}, {T}, Tap X untapped artifacts you control: Target creature gets +X/+0 until end of turn. Activate only as a sorcery.
{5}, {T}: Create a 2/2 colorless Robot artifact creature token.

Secret Lair Countdown

Artifact

At the beginning of your upkeep, you may put a soot counter on this artifact.
At the beginning of each player's upkeep, that player sacrifices a permanent of their choice for each soot counter on this artifact.

Smokestack

Secret Lair Drop

Sorcery

Serum Visions