Sprouting Thrinax, Mortuary, Garruk's Horde, and Phyrexian Altar

Prerequisites

• Sprouting Thrinax on the battlefield
• Mortuary on the battlefield
• Garruk's Horde on the battlefield
• Phyrexian Altar on the battlefield

Steps

1. Activate Phyrexian Altar by sacrificing Sprouting Thrinax, adding
2. Sprouting Thrinax dies, triggering itself and Mortuary
3. Resolve the Sprouting Thrinax trigger, creating three 1/1 Saproling creature tokens
4. Resolve the Mortuary trigger, putting Sprouting Thrinax on top of your library from your graveyard
5. Activate Phyrexian Altar twice by sacrificing two Saproling tokens, adding
6. Cast Sprouting Thrinax from the top of your library by paying
7. Repeat

Results

• Infinite colored mana
• Infinite creature tokens
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers
• Infinite storm count