Arcane Melee + Ghostly Flicker + Izzet Chronarch + Khalni Gem

UR identity

Commander legal

The 4 combo pieces

• Arcane Melee
• Ghostly Flicker
• Izzet Chronarch
• Khalni Gem

How to execute it

1. Activate Khalni Gem by tapping it, adding {U}{U}.
2. Cast Ghostly Flicker by paying {U}, targeting Khalni Gem and Izzet Chronarch, blinking them.
3. When Izzet Chronarch enters the battlefield, return Ghostly Flicker to you hand.
4. When Khalni Gem enters the battlefield, return two lands you control to your hand if able.
5. Repeat.

What the combo produces

• Infinite colored mana
• Infinite creature LTB
• Infinite ETB
• Infinite landfall triggers
• Infinite magecraft triggers
• Infinite storm count
• Return all lands you control to your hand