a pokemon booster box M4 Ninja Spinner Japanese Card A Growing Storm of Stellar Strength Pokemon TCG ME01 Mega Evolution

Underworld Cerberus Description : You can substitute this card for any 1 Fusion-Material Monster

Mega Gengar ex can be obtained from Mega Shine pack in the Mega Shine set

This approach has you damage yourself with cards like Street Wraith (cycling for 2 life) to accelerate your draws, or shock lands that deal 2 damage when they enter

Syun's attacks get him a meeting with the head of Leo Duel School, Reiji Akaba, and when Syun explains that he's after Reiji's father, Leo, Reiji reveals that he wants to take out Leo as well

So without spending anything, you could build a respectable deck after a few days of modest playtime