Shrieking Drake + Inexorable Tide + Gemstone Array

Shrieking Drake

Inexorable Tide

Gemstone Array

How it works

1. Cast Shrieking Drake by paying .
2. Inexorable Tide triggers, putting a charge counter on Gemstone Array.
3. When Shrieking Drake enters the battlefield, it triggers, returning itself from the battlefield to your hand.
4. Activate Gemstone Array's second ability by removing a charge counter from it, adding .
5. Repeat.