Abaddon the Despoiler and Hoverstone Pilgrim on the battlefield.
An opponent has lost life this turn.
You have no other cards in your library with a mana value of 0.
({U} magic symbol) available.
Steps
Cast Shrieking Drake by paying ({U} magic symbol) .
Shrieking Drake's cascade ability from Abaddon the Despoiler triggers, causing you to cast Lotus Bloom from your library since it is the only valid card to cast.
Shrieking Drake enters the battlefield, triggering itself, returning itself to your hand.
Activate Lotus Bloom by tapping and sacrificing it, adding ({U} magic symbol) ({U} magic symbol) ({U} magic symbol) .
Activate Hoverstone Pilgrim by paying ({2} magic symbol) , putting Lotus Bloom from your graveyard on the bottom of your library.