Cannot be Normal Summoned/Set. Must first be Special Summoned (from your hand) by Tributing 1 monster, while you control "Toon World". If "Toon World" on the field is destroyed, destroy this card. Can attack your opponent directly, unless they control a Toon monster, in which case this card must target a Toon monster for its attacks. This card gains 300 ATK for every "Dark Magician" or "Magician of Black Chaos" in either player's Graveyard.
Can be special summoned, using any monsters as tribute.
Only toon monster that can attack right after it is summoned.
Can only be special summoned when Toon World is on the field.
Destroyed if Toon World is destroyed.
Gravelstorm can be used to return your toon world to prevent your opponent from destroying it. This will not destroy your toon monsters that are already on the field, but if you want to use the spell again, it will cost 1,000 LP to use.
Toon Mermaid will make it easier to summon toon DMG. Other monsters, that when destroyed, can special summon another monster on to the field can also work. Cards like Familiar Knight or Rai-Mei are some examples.
Tributes for cost
Cannot Normal Summon / Cannot Set / Semi-Nomi / Special Summons itself from your hand