Ghostly Flicker + Mnemonic Wall + The Mightstone and Weakstone + Urza, Lord Protector

WU identity

Commander legal

The 4 combo pieces

What must be in place

Urza, Lord Protector and The Mightstone and Weakstone melded into Urza, Planeswalker.
You control a basic Island.

How to execute it

  1. Activate Urza, Planeswalker's first loyalty ability by putting two loyalty counters on it, causing instant spells you cast this turn to cost {2} less and causing you to gain two life.
  2. Activate a basic Island by tapping it, adding {U}.
  3. Cast Ghostly Flicker by paying {U}, blinking Mnemonic Wall and a basic Island.
  4. Mnemonic Wall enters the battlefield, returning Ghostly Flicker from your graveyard to your hand.
  5. Repeat from step 2.

What the combo produces