Convert to Slime
From Duskmourn: House of Horror Commander set
Convert to Slime
Sorcery
Destroy up to one target artifact, up to one target creature, and up to one target enchantment.
Delirium — Then if there are four or more card types among cards in your graveyard, create an X/X green Ooze creature token, where X is the total mana value of permanents destroyed this way.
Rulings
- If you destroy some of your own permanents with Convert to Slime, they'll go to your graveyard in time for their types to be counted for the delirium ability.
- Use the mana value of the destroyed permanents as they last existed on the battlefield to determine the value of X.