Urza, Prince of Kroog, S.H.I.E.L.D. Helicarrier, and Ashnod's Altar

Prerequisites

• Urza, Prince of Kroog on the battlefield
• S
• H
• I
• E
• L
• D
• Helicarrier on the battlefield
• Ashnod's Altar on the battlefield
• available

Steps

1. Activate Urza by paying , creating a token copy of S
2. H
3. I
4. E
5. L
6. D
7. Helicarrier that is a 1/1 Soldier in addition to its other types
8. When the S
9. H
10. I
11. E
12. L
13. D
14. Helicarrier token enters, it triggers, creating two 1/1 Soldier creature tokens
15. Activate Ashnod's Altar three times by sacrificing the S
16. H
17. I
18. E
19. L
20. D
21. Helicarrier token and the two Soldier tokens, adding six
22. Repeat

Results

• Infinite artifact ETB
• Infinite artifact LTB
• Infinite artifact sacrifice triggers
• Infinite creature ETB
• Infinite creature LTB
• Infinite death triggers
• Infinite creature sacrifice triggers