Umkas, the Exploder

Whenever a non-Token artifact enters the battlefield, create a 0/3 Artifact Turret Token.
If a Turret is on the field, Umkas, the Exploder gains Ward {3}.

{2}, Sacrifice a Turret; choose 1 of the following:
• Deal 5 damage to target creature, player, or Planeswalker
• Deal 2 damage to all target player's creatures
• Give target creature Indestructable until the end of the turn.