Breaching Dragonstorm + Mortuary + Mana Echoes + Phyrexian Altar

Prerequisites

• You control at least four Dragons, one of which must be nontoken and have mana value 8 or less.

Steps

1. 1Activate Phyrexian Altar by sacrificing a nontoken Dragon with mana value 8 or less, adding .
2. 2When the Dragon dies, Mortuary triggers, putting the Dragon from your graveyard onto the top of your library.
3. 3Cast Breaching Dragonstorm by paying .
4. 4When Breaching Dragonstorm enters the battlefield, its first ability triggers, causing you to exile the Dragon from the top of your library and cast it without paying its mana cost.
5. 5When the Dragon enters the battlefield, Breaching Dragonstorm's second ability and Mana Echoes trigger.
6. 6Resolve the Breaching Dragonstorm trigger, returning it from the battlefield to your hand.
7. 7Resolve the Mana Echoes trigger, adding for each Dragon you control.
8. 8Repeat.

Effects

• Infinite colorless mana
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers
• Infinite storm count