Marianne Vs Kaito

Turn 1 (Kaito)
LP: Kaito 4000 -- Marianne 4000
 * Kaito sets one monster and one magic or trap card.

Turn 2 (Marianne)
LP: Kaito 4000 -- Marianne 4000
 * Marianne Sumons Venom Rattler in attack position ( 800 Atk /1500 Def) and activates its effect with priority.
 * Kaito's set Masked Dragon is switched into face-up Attack Position ( 1400 Atk /1100 Def) and one Venom Counter is placed on it.
 * Marianne sets 2 magic or trap cards and activates Venom Swamp.
 * Masked Dragon's Atk is reduced by Venom Swamp's effect ( 1400 ↓ 900 Atk /1100 Def).
 * Venom Swamp's effect activates in the End Phase, placing 1 Venom Counter on Masked Dragon. ( 900 ↓ 400 Atk /1100 Def)

Turn 3 (Kaito)
LP: Kaito 4000 -- Marianne 4000
 * Kaito activates Stamping Crush to destroy Venom Swamp.'
 * Marianne activatesSnake Deity's Command, revealing Venom Python to negate Stamping Crush and destroy it.
 * Kaito summons Elemental Hero Prisma (1700 Atk/1100 Def) and activates its effect to send Red-Eyes Black Dragon to the Cemetery and copy its name.
 * Masked Dragon attacks Venom Rattler.
 * Venom Rattler's effect activates. Since Masked Dragon has a Venom Counter on it, its attack is negated.
 * Prisma attacks Venom Rattler and destroys it. (Marianne 4000 ↓ 3100)
 * Marianne activates Damage = Reptile, using its effect to summon Venom Coral from her deck in Attack Position ( 800 Atk /100 Def).
 * Venom Rattler's effect activates, placing 1 Venom Counter on Prisma ( 1700 ↓ 1200 Atk /1100 Def)
 * Kaito sets a magic or trap card.
 * Venom Swamp's effect activats in the End Phase, placing 1 Venom Counter on Prisma ( 1200 ↓ 700 Atk /1100 Def) and Masked Dragon ( 400 ↓ 0 Atk /1100 Def). Since Masked Dragon's Atk is reduced to 0, it's destroyed.

Turn 4 (Marianne)
LP: Kaito 4000 -- Marianne 3100
 * Marianne activates Distrain Card to prevent Kaito from activating his second set card this turn.
 * Marianne summons Venom Python in Attack Position ( 1600 Atk /1300 Def).
 * Venom Python attacks Elemental Hero Prisma, reducing its Atk by 600 because of the Venom Counters on it and destroying it. (Kaito 4000 ↓ 2500)
 * Venom Python's effect activates, allowing Marianne to draw 1 card.
 * Venom Coral attacks Kaito directly. (Kaito 2500 ↓ 1700)
 * Marianne sets a magic or trap card.

Turn 5 (Kaito)
LP: Kaito 1700 -- Marianne 3100
 * Kaito activates Pot of Greed to draw 2 cards.
 * Activates Legitimate Lineage, summoning Red-Eyes Black Dragon in Attack Position ( 2400 Atk /2000 Def).
 * Activates Dark Flame Bullet to inflict damage equal to Red-Eyes's Atk. (Marianne 3100 ↓ 700)
 * Activates Burst Breath, releasing Red-Eyes Black Dragon to destroy all monsters with Def lower than its Atk. Both of Marianne's monsters are destroyed.
 * Activates Swing of Fond Memories, summoning Red-Eyes Black Dragon from his Cemetery ( 2400 Atk /2000 Def).
 * Kaito releases Red-Eyes Black Dragon to summon Red-Eyes Darkness Dragon ( 2400 Atk /2000 Def) from his hand.
 * Red-Eyes Darkness Dragon gains 600 atk for the two Dragon Type monsters in his Cemetery. ( 2400 ↑ 3000 Atk /2000 Def)
 * Red-Eyes Darkness Dragon attacks Marianne directly.
 * Marianne activates Snake King's Judgment, summoning Poison Snake King Venominon from her deck in Defense Position (0 Atk/ 0 Def ) and placing 1 Venom Counter on Red-Eyes Darkness Dragon ( 3000 ↓ 2500 Atk /2000 Def).
 * Red-Eyes Darkness Dragon attacks and destroys Venominon.
 * Marianne removes Venom Coral from her Cemetery to revive Venominon with its own effect. ( 0 Atk /0 Def)
 * Venominon gains 500 Atk for each Reptile Type monster in Marianne's Cemetery. ( 0 ↑ 1000 Atk /0 Def)
 * Kaito sets his last card in his Magic and Trap Card Zone.
 * Venom Swamp places 1 Venom Counter on Red-Eyes Darkness Dragon during the End Phase. ( 2500 ↓ 2000 Atk /2000 Def)

Turn 6 (Marianne)
LP: Kaito 1700 -- Marianne 700
 * Marianne discards Venom Leaper from her hand to activateSnake Rain, sending Venom Boa, Venom Cobra, Venom Serpent, and Venom Snake from her Deck to her Cemetery.
 * With 5 more Reptile Type monsters in her Cemetery, Venominon gains 2500 Atk. ( 1000 ↑ 3500 Atk /0 Def)
 * Venominon attacks and destroys Red-Eyes Darkness Dragon. (Kaito 1700 ↓ 200)
 * Kaito activates Red-Eyes Burn, inflicting damage to both players equal to Darkness Dragon's Atk. (Kaito 200 ↓ 0), (Marianne 700 ↓ 0)

The duel ends in a draw.