Incubation // Incongruity

If an effect allows you to cast a spell with certain characteristics, consider only the characteristics of the half you're casting. For example, if an effect allows you to cast a sorcery spell with mana value 2 or less from among cards in your graveyard, you could cast Assault this way, but not Battery.

If you copy a spell that's half of a split card, the copy copies that same half. For example, if you copy Assault, the copy is also Assault, not Battery.

Each split card has two names. If an effect instructs you to choose a card name, you may choose one of those names, but not both.

If the target creature is an illegal target by the time Incongruity tries to resolve, the spell doesn't resolve. No player creates a Frog Lizard token.