Card Trivia:Substitoad
- This card's OCG name, "Substitute Toad"「イレカエル(irekaeru)」is a pun on the Japanese term「入れ替える」which means "to swap around", reflecting this card's effect of "swapping" one monster with a "Frog" monster from the Deck.
- This card has a watered-down counterpart: "Tradetoad".
- This is one of a few cards where a creature in its artwork are divided between the themes of "light" and "darkness", the others being "Light and Darkness Dragon", "Tradetoad", "Change of Heart" and "Star Blaster".
- This card is the "Frog" version of "Lonefire Blossom", as both cards can Special Summon a text-specific monster from the Deck by Tributing one monster.
- This card is the first to ever become Forbidden due to its support for an archetype: it is banned due to its ability to mill the Deck and fill the Graveyard really quick by continuously Tributing the "Frog" monsters which were Special Summoned by its effect.