Tim, Tool Time Legend

Tool Time Expertise — Whenever you cast an artifact spell, create a 1/1 colorless "Tool Token" artifact creature with "{t}: Add {c}."

More Power! — {t}: Double the power of target artifact or creature until end of turn. If it’s an artifact, it gains haste.

Accidental Sabotage — Whenever Tim, Tool Time Legend attacks, flip a coin. If you lose the flip, destroy target artifact you control.

"If it's worth doing, it's worth overdoing!"