Akira uses Tindangle Acute Cerberus to attack Ai and knock his life points down to 400 and then increase his monsters attack points to 4600. Ai counters this by Ritual Summoning Water Leviathan @Ignister and use its effect to banish Tindangle Acute Cerberus from the field. Water Leviathan attacks Akira's remaining monster and uses its other effect to return all his Link Monsters to the Graveyard to increase its attack points