Yugio deyueru monsutazu2000

Yugi Moto:
Now I will go on the attack with Mammoth Graveyard, Polymerization, and the Living Arrow card.

Seto Kaiba:
What's a Living Arrow card?

Yugi Moto:
I tell you. Normally, I make a fusion with my cards but for a change, Living Arrow allows me to fuse my cards with my opponent's cards opening up bold new possibilites. Now I will use the magic of the Living Arrow to fuse my Mammoth Graveyard to the heart of your beast. However, since my Mammoth Graveyard is an undead type monster, it can't properly fuse with your living Ultimate Dragon. Instead, it will cause your dragon to rot and decay from the inside out and since Mammoth Graveyard has a total of 1200 attack points, that means your Dragon will lose 1200 attack and defense points each turn until even my weakest monsters can destroy it.