Siege Break

When you cast Siege Break, create 4 Void Shield artifact tokens with "Non-artifact permanents you control have Hexproof"
At the beginning of your upkeep, you gain 1 life.
At the beginning of combat on your turn,
creatures your opponents get -1/-1 until end of
turn.
At the beginning of your end step, if a creature
you controlled died this turn, then you may deal
3 damage to target creature or planeswalker.