Omnath, Locus of Creation, Doppelgang, and Mystic Sanctuary

Prerequisites

• Omnath, Locus of Creation on the battlefield
• Doppelgang in hand
• Mystic Sanctuary on the battlefield
• available

Steps

1. Cast Doppelgang by paying , creating two token copies of Omnath and Mystic Sanctuary
2. Put all but one of the newest Omnath tokens into your graveyard due to the legend rule
3. Each Mystic Sanctuary token created triggers, each Omnath you controlled prior to step 2's second abilities trigger twice, and each of the created Omnath token's first abilities trigger once
4. Resolve both Mystic Sanctuary abilities, putting Doppelgang and up to one other instant or sorcery from your graveyard onto the top of your library
5. Resolve both Omnath tokens' first triggers, causing you to draw two cards, including Doppelgang
6. Resolve the remaining Omnath triggers, causing you to gain 8 life, add , and perform other actions dependent on how many times the specific abilities have triggered that turn
7. Repeat

Results

• Infinite card draw
• Near-infinite ETB
• Near-infinite LTB
• Near-infinite blue mana
• Near-infinite copies of all permanents
• Near-infinite damage
• Near-infinite death triggers
• Near-infinite green mana
• Near-infinite landfall triggers
• Near-infinite lifegain
• Near-infinite lifegain triggers
• Near-infinite magecraft triggers
• Near-infinite mana permanents you control can produce
• Near-infinite red mana
• Near-infinite white mana