Kaijudo

The series follows the adventures of a young boy named Ray from San Campion who possesses the rare ability to summon and duel alongside fantastical creatures from a parallel dimension. Evil forces led by The Choten intend to enslave and tame these creatures, so Ray and his two best friends Allie and Gabe must join the ranks of the mysterious Duel Masters to ensure the survival of both races before it's too late.

(Source: Wikipedia)