Mechtitan Core, Astral Dragon, Encroaching Mycosynth, Ojer Taq, Deepest Foundation // Temple of Civilization, and Krark-Clan Ironworks

Prerequisites

• Mechtitan Core on the battlefield
• Astral Dragon in hand
• Encroaching Mycosynth on the battlefield
• Ojer Taq, Deepest Foundation // Temple of Civilization on the battlefield
• Krark-Clan Ironworks on the battlefield
• available

Steps

1. Cast Astral Dragon by paying
2. When Astral Dragon enters the battlefield, it triggers, creating six token copies of Mechtitan Core that are 3/3 Dragons in addition to their other types
3. Activate Krark-Clan Ironworks twice by sacrificing two of the Mechtitan Core tokens, adding
4. Activate a Mechtitan Core by paying and exiling it, three other Mechtitan Core tokens, and Astral Dragon, creating three 10/10 Mechtitan legendary creature tokens
5. Put all but one of the Mechtitan tokens in your graveyard due to the legend rule
6. Mechtitan Core triggers twice, returning all cards exiled to create the Mechtitan tokens from exile to the battlefield
7. When Astral Dragon enters the battlefield, it triggers
8. Holding priority, activate Krark-Clan Ironworks by sacrificing Mechtitan, adding
9. Resolve the Astral Dragon trigger, creating six token copies of Mechtitan Core that are 3/3 Dragons in addition to their other types
10. Repeat from step 3
11. Once you have infinite , you may forego sacrificing Mechtitan Core tokens to Krark-Clan Ironworks, and then target any other applicable permanents using Astral Dragon

Results

• Infinite colorless mana
• Infinite creature copies of noncreature permanents
• Infinite creature tokens
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers