I actually drew the idea from FF Dissidia Summons collection
Carbuncle is a Guardian Force. It is obtained by Drawing from the Iguons in Deling City. In its summoning animation, it starts with it appearing from a hole in the ground. After that, it jumps up and casts "Ruby Light" on the party, granting them the Reflect status before returning into the hole.
Carbunkle :Final Fantasy VIII Square Enix (c) FF: Dissidia