Lux Cannon
{4}
Artifact
{T}: Put a charge counter on ~this~.
{T}, Remove three charge counters from ~this~: Destroy target permanent.
Magistrate's Scepter
{3}
Artifact
{4}, {T}: Put a charge counter on ~this~.
{T}, Remove three charge counters from ~this~: Take an extra turn after this one.
Titan Forge
{3}
Artifact
{3}, {T}: Put a charge counter on ~this~.
{T}, Remove three charge counters from ~this~: Create a 9/9 colorless Golem artifact creature token.