Duel Masters Sacred Lands

Shobu finds an old diary that belonged to his father and begins his journey to follow in his fathers footsteps in an attempt to recover his "mojo" and also to become a better Kaijudo duelist. In his journey he makes new friends and face an enemy who call themselves P.L.O.O.P. and they have the power to control the creatures with Dark Amulet Deck Case and with the power of creatures they want to rule both worlds. Shobu and his friends now go on a quest to stop them and seal the gates to creature worlds.

(Source: Duel Masters Wiki)