Les cinq cartes Spectral Procession, Advice from the Fae, Beseech the Queen, Flame Javelin et Tower Above, de l'édition Shadowmoor, forment un cycle.
Avec Reaper King, ce sont les seules cartes avec un coût de mana composé de manas hybrides d'une couleur unique et de deux manas génériques.

Source 1 (Twobrid Mana - "Twobrid mana was first introduced in Shadowmoor on six cards. It's only ever appeared on those six cards, so it's something that the enfranchised audience is familiar with, but it's a vein of design space we've barely touched.") - Source 2 (Shadowmoor Block - "Six of the cards in the set introduced a new type of hybrid mana, what we in R&D call "twobrid." [...]")