The ping ability used to be located in blue. After the color pie shift, pinging was relocated into red. Blue cards with pinging are Prodigal Sorcerer, and Psionic Gift and Rootwater Hunter. Red cards with pinging are Prodigal Pyromancer, Cunning Sparkmage, Vithian Stinger, Goblin Fireslinger and Anaba Shaman. The cards Gelectrode and Hypervolt Grasp both make a reference to blue's past pinging ability by using it on a multicolored card. Also a callback to blue's original claim is the Fledgling Mawcor from Time Spiral.