What is my power? Probably 1. Use these triggers to make it more fun! Add some whimsy to your Magic the Gathering game with this fun, inspired Esper Sentinel trigger reminder. Illustrated by MRB Alters. All tokens start as hand drawn and inked illustrations that are digitally colored. Professionally printed on card stock, these tokens measures 2.5" by 3.5" (63mm by 83mm) so they will fit in with all your standard game card boxes and sleeves.