The reason why we use the skill It's a Toon World even though we have Toon Kingdom in the deck is because we want a more consistent OTK. Having Toon World already on the field at the start of the duel means that we require one less card to set-up making the combo more consistent.
The Field Spell
Toon Kingdom is essentially the better version of Toon World. With no LP cost, it uses your cards from your deck to activate, banishing them face-down. But with only 1 copy of this card obtainable, getting it in the duel can be a problem, but once you manage to get it, your toon monsters will be invincible. Search out Toon Kingdom with Planet Pathfinder, or Toon Table of Contents.
Toon Kingdom and Toon World are key to your deck's strategy. If they are destroyed your Toon monsters follow them to the graveyard and you will be put in an unfavorable position. To prevent this from happening, protect your Toon World with Magic Reflector which puts a counter on your face-up spell card that blocks it from being destroyed. Although this does not prevent it from being banished by cards like Cosmic Cyclone.
Toon Dark Magician Girl
Some Toon monsters can be special summoned making them quicker to get out on the field, the down side is that these monster usually require you to have Toon World on the field before they can be special summoned.
Toon Dark Magician Girl is unique among Toon monsters, because she can attack immediately the turn she was special summoned. Although you are required to tribute 1 monster to special summon her.
Toon Mermaid can be special summoned, making her good tribute fodder for stronger monsters.
A powerful search card capable of getting any card with Toon in it's name out of your deck. Use this to search out anything missing from your OTK combo. Search out Toon Dark Magician Girl for your attacker, Toon Mermaid if you need tribute fodder, or Toon Rollback if you need your OTK enabler.
This card allows one of your Toon monsters to attack twice. The best target for this card is Toon Dark Magician Girl because she is the only Toon monster that can attack during the turn she is summoned. With a 2000 attack stat, she just enough attack to defeat your opponent with 2 direct attacks. Toon Summoned Skull is the next best option if you do not control a Toon Dark Magician Girl. But keep in mind he cannot attack the turn he is summoned, so do not use Toon Rollback on the same turn you summon him.
Sphere Kuriboh and Enemy Controller are excellent defense options with their own unique traits. You can use Sphere Kuriboh directly from your hand unlike other protection cards that need to be set, making them vulnerable to removal. Enemy Controller can be used to take an opponent's monster if you need to push for more damage during your OTK combo. Treacherous Trap Hole is a powerful trap card that everyone is using. It is good because by itself is to destroy 2 monsters your opponent controls for no cost. If used at the right time this could completely stop your opponent from doing anything further for that turn.
De-Spell is also good for destroying your opponent's HHG before you activate your Toon Kingdom.
Gravelstorm can be used to return your Toon Kingdom back to your hand. If it doesn't get destroyed, your toon monsters won't get destroyed, but using Toon Kingdom again will cost another 3 cards from your deck.
Toon Mermaid can be special summoned once you have Toon Kingdom/World active. This can lead to a tribute summon to get your stronger monsters right away.
Since toon monsters can't attack the turn they are summon, Soul Exchange is a really good card to use. Using it early instead of for taking down your opponent's stronger is still fine. This is because your toon monsters can't be destroyed by battle, or card effects.
Toon Dark Magician Girl can attack directly right after it's special summoned, unless you summoned using Soul Exchange.
Toon Summoned Skull has high attack, but its problem has always been its low defense. Using Toon Kingdom, your Toon Summoned Skull will not get destroyed as easily, but each attempt to attack will cost 500 LP.
Since pegasus is now unlockable don't expect it to come back anytime soon
Magic Reflector in 2018? C'mon bro, today Cosmic Cyclone is everywhere. Toon is trash, but at least don't put unappropriate cards. You better run Crystal Sear instead. Also the 3rd Toon Summoned Skull is unnecessary, you better replace it with Jinzo