Fill in the rest of the extra deck with random cards. Here I will explain why I added some of the cards.
Main Deck (40 cards)
The 1x cards (Rollback, shadow, mask, goblin, cyber and Comic) The purpose of these cards is really to search them when you need them. For instance shadow toon is worthless on the first turn.
3x Toon harpie lady: These cards are very important. They are free special summons as long as Toon kingdom is on the field. Also If you play them whilst another toon monster is on the field you can destroy one of your opponent's spells/traps. This is useful to get rid of potential threats.
3x The Black Sone Of Legend: This card's purpose is to special summon Red-eyes then use Red-eyes to special another toon card from your hand.
3x Toon mermaid: Free special summon.
3x Toon Dark Magcian: The best toon card (in my opinion). The card's purpose is to set/special summon the 1x cards and to special summon Toon ancient gear golem and Toon Black Luster Soldier. 1x Toon Ancient Gear Golem: Great at dealing damage.
2x Toon Bookmark: I put 2 instead of 3 so there was room to add comic hand. Adds Toon Kingdom to your hand and serves as protection for Kingdom too.,
3x Toon Terror: Great at negating spells/traps and destroying monsters.
2x Toon Briefcase: Stops your opponent from getting monsters on the field.
Extra Deck (add cards so the total becomes 15)
1x Clear Wing Sychro Dragon: Powerful card that can be summoned once you side in Ash Blossom and/or Ghost ogre (use an lv3 tuner+ a lv4 toon).
Side Deck (15 cards)
3x Ghost Ogre: If your opponent is taking control of the duel(s) using card effects side her in (can be used to synchro summon clear wing). She is a great replacement for Toon Terror; she can be activated from the hand.
2x Ash Blossom: If your opponent is doing the specific things listed on the card side her in (can be used to synchro summon clear wing).
3x Toon Buster Blader: Side him in if your opponent is using dragon cards.
1x Toon Rollback: side it in to deal damage as quickly as possible.
Raigeki: Side it in if your opponent is getting large and powerful fields.
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