When playing a deck with delirium, your strategies should mostly follow the same plans as threshold
If Phoebe steals a creature's text box, that creature no longer has that text box
The Meathook Massacre [Scalable Wipe and Life-Pressure Engine] The Meathook Massacre scales with the board
As a result, a lot of powerful linear cards are a little shaky on their support, like Silumgars Scorn, or accidentally powerful pairings with dissimilar backups for either half, like Archangel Avacyn plus Hangarback Walker
This five-mana instant reveals the top card from your library, you draw it, and then lose life equal to its mana value
The only reason she isn't lower is because she only costs 2 ink to play