Requires

Displacer Kitten must be on the battlefield. Shipwreck Dowser must be on the battlefield. Cabal Ritual must be in the graveyard. Dark Ritual must be in hand. Mana needed:

Steps

1. Cast Dark Ritual by paying .
2. Displacer Kitten triggers, blinking Shipwreck Dowser.
3. Shipwreck Dowser enters the battlefield, returning Cabal Ritual from your graveyard to your hand.
4. Resolve Dark Ritual, adding .
5. Cast Cabal Ritual by paying .
6. Displacer Kitten triggers, blinking Shipwreck Dowser.
7. Shipwreck Dowser enters the battlefield, returning Dark Ritual from your graveyard to your hand.
8. Resolve Cabal Ritual, adding at least .
9. Repeat.

Results