Fluxlock Command

Choose two —
• Look at the top four cards of your library, put
one of them into your hand and the rest into your graveyard.
• Gain 4 life. Then each opponent loses 4 life
unless they discard a card.
• Target artifact becomes an artifact creature with
base power and toughness 5/5 until end of turn.
{bull} Attacking creatures get -2/-2 until end of turn.