Basal Sliver + Case of the Locked Hothouse + Pulmonic Sliver

WBG identity

Commander legal

The 3 combo pieces

What must be in place

You have solved Case of the Locked Hothouse.

How to execute it

  1. Activate the Sliver that can be cast using {B}{B} by sacrificing it, adding {B}{B}.
  2. The Sliver is put onto the top of your library instead of into your graveyard due to the replacement effect given to it by Pulmonic Sliver.
  3. Cast the Sliver from the top of your library by paying its mana cost.
  4. Repeat.

What the combo produces