Les dix cartes Plumecreed Mentor, Tidecaller Mentor, Fireglass Mentor, Wandertale Mentor, Burrowguard Mentor, Starseer Mentor, Stormcatch Mentor, Vinereap Mentor, Seedglaive Mentor et Lilysplash Mentor,, forment un cycle appelé "Mentor" de créatures bicolores peu communes, soutenant chacune un archétype de formats limités.

Source 1 () - Source 2 (Gathering the Animals) - Source 2 ("Draft, as an example, had a big influence on the uncommon gold cards that model Draft archetypes")