Auto Turret

This artifact does not {ut} at the start of your upkeep.

When this artifact enters the battlefield or is {ut}, choose one mode then {t} this artifact:
•Offensive: When your creatures attack, they get +2/0 until end of turn.
•Defensive: All creatures attacking you get 0/-2 until end
of turn.
•Supportive: At the start of your end step, a random opponent takes 2 damage.

{2}: {ut} Auto Turret.