Slobad, Iron Goblin, Spine of Ish Sah, Intruder Alarm, and Efficient Construction

Prerequisites

• Slobad, Iron Goblin on the battlefield
• Spine of Ish Sah on the battlefield
• Intruder Alarm on the battlefield
• Efficient Construction on the battlefield
• Slobad does not have summoning sickness

Steps

1. Activate Slobad by tapping it and sacrificing Spine of Ish Sah, adding seven that can only be spent to cast artifact spells or to activate abilities of artifacts
2. Spine of Ish Sah leaves the battlefield, returning itself from your graveyard to your hand
3. Cast Spine of Ish Sah by paying
4. Efficient Construction triggers, creating a 1/1 Thopter artifact creature token
5. The Thopter enters the battlefield, triggering Intruder Alarm, untapping all creatures
6. Spine of Ish Sah enters the battlefield, destroying target permanent
7. Repeat

Results

• Destroy any number of permanents on each of your turns
• Infinite creature tokens
• Infinite ETB
• Infinite mana creatures you control can produce
• Infinite storm count
• Infinite untap of all creatures